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PCB评估过程中需要关注哪些因素

PCB评估过程中需要关注哪些因素PCB评估过程中需要关注哪些因素PCB评估过程中需要关注哪些因素
2024-08-29 02:50:05 下载 7 查看 1,080
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内窥镜图案工作站说明 文档 应用程序

内窥镜图案工作站说明 文档 应用程序
2015-10-09 20:11:01 下载 153 查看 1,054
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任何给一些数一个和,算出这些可以哪些方式计算得到这个和的算法.

任何给一些数一个和,算出这些可以哪些方式计算得到这个和的算法.
2014-01-05 16:48:07 下载 172 查看 1,068
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The equation is written as a system of two first order ODEs. These are evaluated for different value

The equation is written as a system of two first order ODEs.
2013-12-25 22:24:11 下载 112 查看 1,069
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Produce Java classes to calculate and display the root of a quadratic equation when input the coeffi

Produce Java classes to calculate and display the root of a quadratic equation when input the coefficients
2014-01-17 14:35:13 下载 37 查看 1,080
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It explains about the induction motor equation and also

It explains about the induction motor equation and also how to use with simulink.
2017-07-08 00:31:02 下载 171 查看 1,072
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This program contains the iterative methods of finding solutions of the equation f(x)=0, which are a

This program contains the iterative methods of finding solutions of the equation f(x)=0, which are also
2013-12-27 15:58:02 下载 42 查看 1,062
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一个检查当前系统中有哪些进程在运行

一个检查当前系统中有哪些进程在运行,并且显示对应进程的名称、说明和备注,本工具无需注册、安装。
2017-02-14 10:39:01 下载 113 查看 1,057
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做DSP之前我们该弄明白哪些基本问题

white-space:pre-wrap;background-color:#F8F8F8;">以数字信号处理器(DSP)为核心的实时数字信号处理技术正在迅猛发展,各种类型的DSP分别适应了不同领域的应用要求
2015-06-01 14:20:16 下载 4 查看 34
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分解OBD接口能到采集哪些具体的车辆数据

车载OBD到底什么作用?
2022-12-26 22:40:02 下载 3 查看 8,943
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Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB

Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB
2013-12-25 04:20:11 下载 40 查看 1,093
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Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB

Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB
2013-11-30 00:22:01 下载 151 查看 1,082
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Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB

Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB
2013-12-06 07:51:13 下载 180 查看 1,149
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Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB

Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB
2015-11-28 20:46:01 下载 48 查看 1,076
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Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB

Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB
2015-11-28 20:47:02 下载 135 查看 1,108
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Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB

Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB
2015-11-28 20:48:01 下载 35 查看 1,100
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Resolution of heat equation using Crank Nicholson method. Implemented in matlab language.

Resolution of heat equation using Crank Nicholson method. Implemented in matlab language.
2013-12-18 13:58:04 下载 68 查看 1,187
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增量旋转编码器选型哪些注意事项? 应注意三方面的参数: 1. 械安装尺寸

增量旋转编码器选型哪些注意事项? 应注意三方面的参数: 1. 械安装尺寸,包括定位止口,轴径,安装孔位;电缆出线方式;安装空间体积;工作环 境防护等级是否满足要求。 2.
2014-01-12 19:23:13 下载 39 查看 1,070
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allegro 需要导出哪些文件嘉立创才能自动识别

allegro 需要导出哪些文件嘉立创才能自动识别
2020-10-12 16:13:29 下载 6 查看 147
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高速PCB设计中的阻抗匹配 你都知道哪些

阻抗匹配是指在能量传输时,要求负载阻抗要和传输线的特征阻抗相等,此时的传输不会产生反射,这表明所有能量都被负载吸收了。反之则在传输中有能量损失。在高速线路板打样设计中,阻抗的匹配与否关系到信号的质量优劣。

1、PCB走线什么时候需要做阻抗匹配?

不主要看频率,而关键是看信号的边沿陡峭程度,即信号的上升/下降时间,一般认为如果信号的上升/下降时间(按10%~90%计)小

2022-09-09 08:00:02 下载 2 查看 5,228
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