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- 2004-8-30
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请大虾帮忙翻译下面几句话,急需
【原文】
1。it is made by a look to the back form the front form the left form the top viewed form the front of the panel to the right to the bottom。
2。form the left, to the right ,a negative extreme-proper pole. from the left, to the right ,a negative extreme-proper pole. from the top ,
to bottom ,form the front,to the back,the pole of the proper pole-minus
3)when there is a breaker for the control power supply, it is made an operation circuit more than the second side,but,it is made an operation
circuit form transformer secondary side when there is a transformer for the control power supply |
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