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关注:1
2013-05-23 12:21
求翻译:each of the control valves shall be provided with independent 4 – 20 mA signals which operates over the desired signal output range是什么意思?![]() ![]() each of the control valves shall be provided with independent 4 – 20 mA signals which operates over the desired signal output range
问题补充: |
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