📄 introductionhardwaresoftwareresu.htm
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size=4> </FONT></SPAN></SPAN><I><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>To improve the
understanding of technology, its appropriate application, and potential
consequences: </FONT></SPAN></I><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>The line-following car
is more a toy than a helpful piece of technology that can advance human
welfare but we hope that we have written this report as accurately and
comprehensively as possible so that we could improve other people’s
understanding of this project.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in; TEXT-INDENT: -0.25in"><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>6)</FONT><SPAN
style="FONT-WEIGHT: normal; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-VARIANT: normal"><FONT
size=4> </FONT></SPAN></SPAN><I><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>To maintain and improve
our technical competence and to undertake technological tasks for others
only if qualified by training or experience, or after full disclosure of
pertinent limitations: </FONT></SPAN></I><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>We knew nothing of
microcontrollers coming into the class and we have certainly learned quite
an amount since then. </FONT></SPAN></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in; TEXT-INDENT: -0.25in"><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>7)</FONT><SPAN
style="FONT-WEIGHT: normal; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-VARIANT: normal"><FONT
size=4> </FONT></SPAN></SPAN><I><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>To seek, accept, and
offer honest criticism of technical work, to acknowledge and correct errors,
and to credit properly the contributions of others:
</FONT></SPAN></I><SPAN style="FONT-FAMILY: Palatino Linotype"><FONT
size=4>We sought Professor Land’s and the TA’s help often and attempted to
help our friends and classmates to the best of our
ability.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in; TEXT-INDENT: -0.25in"><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>8)</FONT><SPAN
style="FONT-WEIGHT: normal; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-VARIANT: normal"><FONT
size=4> </FONT></SPAN></SPAN><I><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>To treat fairly all
persons regardless of such factors as race, religion, gender, disability,
age, or national origin: </FONT></SPAN></I><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>This is not really
applicable to our project; we can say without any doubt that our car will
work (or not work) regardless of who is using it in equal
measure.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in; TEXT-INDENT: -0.25in"><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>9)</FONT><SPAN
style="FONT-WEIGHT: normal; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-VARIANT: normal"><FONT
size=4> </FONT></SPAN></SPAN><I><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>To avoid injuring
others, their property, reputation, or employment by false or malicious
action: </FONT></SPAN></I><SPAN style="FONT-FAMILY: Palatino Linotype"><FONT
size=4>The circuitry of the car was tested to ensure no component would get
too hot. We did not take any action against another group that might
have hurt the individuals or their projects.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in; TEXT-INDENT: -0.25in"><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>10)</FONT><SPAN
style="FONT-WEIGHT: normal; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-VARIANT: normal"><FONT
size=4> </FONT></SPAN></SPAN><I><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>To assist colleagues and
co-workers in their professional development and to support them in
following this code of ethics: </FONT></SPAN></I><SPAN
style="FONT-FAMILY: Palatino Linotype"><FONT size=4>When not working on our
project, we were open to helping others.</FONT></SPAN></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in; TEXT-INDENT: -0.25in"><A
href="http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2007/bl222_wh84/bl222_wh84/index.html#top">Back
to Top</A> </P></BLOCKQUOTE></BLOCKQUOTE>
<H1><FONT face="Palatino Linotype"><A id=cost></A>Cost</FONT></H1>
<TABLE id=table1 style="WIDTH: 597pt; BORDER-COLLAPSE: collapse" cellSpacing=0
cellPadding=0 width=795 border=0 x:str>
<COLGROUP>
<COL style="WIDTH: 139pt" width=185>
<COL style="WIDTH: 134pt" width=179>
<COL style="WIDTH: 91pt" width=121>
<COL style="WIDTH: 103pt" width=137>
<COL style="WIDTH: 130pt" width=173></COLGROUP>
<TBODY>
<TR style="HEIGHT: 15pt" height=20>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 1px; FONT-WEIGHT: 700; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: windowtext 0.5pt solid; WIDTH: 139pt; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; HEIGHT: 15pt; TEXT-DECORATION: none"
align=middle width=185 height=20>Component</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 1px; FONT-WEIGHT: 700; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; WIDTH: 134pt; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle width=179>Part Number</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 1px; FONT-WEIGHT: 700; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; WIDTH: 91pt; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle width=121>Cost/Unit</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 1px; FONT-WEIGHT: 700; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; WIDTH: 103pt; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle width=137>Quantity</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: windowtext 0.5pt solid; PADDING-LEFT: 1px; FONT-WEIGHT: 700; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; WIDTH: 130pt; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle width=173>Total Cost</TD></TR>
<TR style="HEIGHT: 15pt" height=20>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: windowtext 0.5pt solid; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; HEIGHT: 15pt; TEXT-DECORATION: none"
align=middle height=20>PNP BJT</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle>TIP107</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle x:num="0.72">$0.72</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle>3</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle x:num="2.16">$2.16</TD></TR>
<TR style="HEIGHT: 15pt" height=20>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: windowtext 0.5pt solid; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; HEIGHT: 15pt; TEXT-DECORATION: none"
align=middle height=20>NPN BJT</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle>TIP102</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle x:num="0.68">$0.68</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle>3</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle x:num="2.04">$2.04</TD></TR>
<TR style="HEIGHT: 15pt" height=20>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: windowtext 0.5pt solid; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; HEIGHT: 15pt; TEXT-DECORATION: none"
align=middle height=20>Opto-isolator</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle>PS2501-4A</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle x:num="1.95">$1.95</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle>2</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle x:num="3.9">$3.90</TD></TR>
<TR style="HEIGHT: 15pt" height=20>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: windowtext 0.5pt solid; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; HEIGHT: 15pt; TEXT-DECORATION: none"
align=middle height=20>Phototransistor</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle>QRB1114</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle x:num="1.05">$1.05</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle>3</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle x:num="4.15">$4.15</TD></TR>
<TR style="HEIGHT: 15pt" height=20>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: windowtext 0.5pt solid; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; HEIGHT: 15pt; TEXT-DECORATION: none"
align=middle height=20>Microcontroller</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle>Mega32</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle x:num="8">$8.00</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: 1px; BORDER-BOTTOM: windowtext 0.5pt solid; FONT-STYLE: normal; FONT-FAMILY: Calibri, sans-serif; WHITE-SPACE: nowrap; TEXT-DECORATION: none"
align=middle>1</TD>
<TD
style="BORDER-RIGHT: windowtext 0.5pt solid; PADDING-RIGHT: 1px; BORDER-TOP: medium none; PADDING-LEFT: 1px; FONT-WEIGHT: 400; FONT-SIZE: 11pt; VERTICAL-ALIGN: bottom; BORDER-LEFT: medium none; COLOR: black; PADDING-TOP: ⌨️ 快捷键说明
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