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PCB表面最终涂层种类有哪些

PCB表面最终涂层种类有哪些，简述PCB涂层

2022-08-28 18:10:03 下载 2 查看 210
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你对功率因数有哪些误解？

最近有做逆变器的客户咨询功率因数测量，客户想了解逆变器的功率因数应该是在怎么样的负载条件下测量的，阻性？容性？还是感性？其实里边存在一个很大的理解误区，忽视这种误区会导致逆变器的生产厂家和使用厂家出现比较严重的分歧。
2022-12-15 20:30:02 下载 7 查看 6,887
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电容器的参数标注方法有哪些

电容器的参数标注方法有哪些
2013-10-11 05:00:01 下载 92 查看 1,048
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三层交换机种类有哪些

三层交换机可以根据其处理数据的不同而分为纯硬件和纯软件两大类。
2013-11-01 23:40:01 下载 165 查看 1,054
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3296电位器使用注意事项有哪些

对于3296电位器的理解想必大家也都知道其实电位器众多型号中的一种，当然电位器的作用有很多，所以才广泛的被应用在各个领域当中。
2022-12-16 09:00:02 下载 8 查看 8,398
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Antennas and Propagation

principles and current practices of the wireless communication channel, including both
antenna and propagation
2020-05-26 12:56:32 查看 79
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内容为学些VB必须看的有哪些书籍

内容为学些VB必须看的有哪些书籍，推荐大家看看。
2013-12-27 00:10:10 下载 76 查看 1,059
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Beam Propagation Method

Beam Propagation Method
2014-01-05 14:11:08 下载 169 查看 1,037
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Propagation Channel Characterization

The investigation of the propagation channel is becoming more and more important in mod-
ern wireless
2020-05-31 19:14:47 下载 3 查看 86
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Radio Propagation Measurement

Radio propagation measurements and channel modelling continue to be of fundamental importance
to
2020-06-01 02:41:48 下载 1 查看 103
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Radio Wave Propagation

the prerequisites for the development of telecommunication services is the
understanding of the propagation
2020-06-01 02:47:20 下载 1 查看 82
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现在是时候让大师教教你word有哪些功能了：）

现在是时候让大师教教你word有哪些功能了：）
2014-01-13 21:41:01 下载 191 查看 1,049
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Introduction+to+RF+Propagation


siderable increase in the need for radio-frequency (RF) planning, link plan-
ning, and propagation
2020-05-27 16:45:25 查看 122
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Propagation Handbook for Wireless Communication

intent
of this book is to provide a description of the physical phenomena that can
affect propagation
2020-05-31 19:15:43 下载 1 查看 87
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端口扫描 可以查看自己的pc有哪些端口是打开的

端口扫描 可以查看自己的pc有哪些端口是打开的
2016-04-21 20:23:02 下载 192 查看 1,119
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FINGERPRINT MATCHING BASED ON ERROR PROPAGATION

FINGERPRINT MATCHING BASED ON ERROR PROPAGATION
2013-12-27 14:37:05 下载 105 查看 1,041
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wireless propagation in microcells and pico cells

wireless propagation in microcells and pico cells
2017-06-03 20:41:02 下载 66 查看 1,110
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Essentials+of+Radio+Wave+Propagation

The first two
chapters examine propagation in free space for point-to-point and
point-to-area
2020-05-27 13:18:22 查看 104
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Light+Propagation+in+Gain+Media

An optical fiber amplifier is a key component for enabling efficient transmission of
wavelength-divisionmultiplexed(WDM)signalsoverlongdistances.Eventhough
many alternative technologies we
2020-05-27 19:48:32 查看 71
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The+Mobile+Radio+Propagation+Channel

Some tine ago it become apparent the the first edition of this book was rapidly approaching its sell-by date,since many aspects needed revise.There were two obvious courses of action : to forget the w
2020-06-01 11:06:26 下载 1 查看 61
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