Filament
发表于 2025-3-21 16:19:21
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PANEL
发表于 2025-3-21 22:02:48
Power amplifiers, power supplies and batteries,quipment. A move towards greater power density than batteries can provide is leading to significant progress in fuel cells of very low power (a few W), as well as MW installations in the USA. Considerable work has also been done on fuel-cell-powered cars, which are nonpolluting and need no hydrocarb
会犯错误
发表于 2025-3-22 02:26:47
Integrale von Zylinderfunktionen, prone to break down as the tubes failed, though ingenious methods were devised to minimise the stoppages. But it was not only high-technology products like computers which suffered from valve technology; radios for example were large and clumsy, and batteries for ‘portable’ radios were enormous, he
Intruder
发表于 2025-3-22 05:31:18
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Vsd168
发表于 2025-3-22 11:36:20
Circuit analysis, be modelled by simple elements that, when assembled into a circuit in the right way, can be analysed and so predict the machine’s behaviour. Accordingly, circuits are the foundation of any study of electrical or electronic engineering. We begin by defining simple circuit elements, then we shall inc
exhilaration
发表于 2025-3-22 13:17:49
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exhilaration
发表于 2025-3-22 20:09:27
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门闩
发表于 2025-3-23 00:45:33
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轻而薄
发表于 2025-3-23 03:52:51
Bode diagrams and 2-port networks, (To some extent any circuit containing reactive components acts as a filter, that is it attenuates more at some frequencies than at others.) Any network may be so arranged as to have a pair of input terminals (the input .) and another pair for output (the output port) as in Figure 5.1 a. The ratio
针叶树
发表于 2025-3-23 09:28:08
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