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关注：1
2013-05-23 12:21
求翻译：PLC控制变频调速五层电梯系统设计是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
PLC控制变频调速五层电梯系统设计
问题补充： |
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2013-05-23 12:21:38
Frequency five elevators PLC control system design
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2013-05-23 12:23:18
PLC control frequency conuersion 5 lift system design
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2013-05-23 12:24:58
The PLC control frequency conversion modulates velocity five elevator system designs
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2013-05-23 12:26:38
PLC control design of variable frequency speed five-story elevator system
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2013-05-23 12:28:18
PLC control design of variable frequency speed five-story elevator system
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