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关注:1
2013-05-23 12:21
求翻译:Conversely, if the frequency of adjusting pump blade angles is low, the operation duties of the pumps will not be regulated with the varying conditions, and the operation cost will be high.是什么意思?![]() ![]() Conversely, if the frequency of adjusting pump blade angles is low, the operation duties of the pumps will not be regulated with the varying conditions, and the operation cost will be high.
问题补充: |
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