1) 有相当的电阻, 为什么设计时要放点电阻在那?
2)要是没电阻, 那丢掉的两个伏特上哪去了?
反正今晚一回去就能出结果.
1) 有相当的电阻, 为什么设计时要放点电阻在那?
2)要是没电阻, 那丢掉的两个伏特上哪去了?
反正今晚一回去就能出结果.
•
It should be 0 ohm or
-psp0605-
♂
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12/05/2012 postreply
13:53:54
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