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关注:1
2013-05-23 12:21
求翻译:upstream connection pipes with a make-up pipe, welded to the penstock, and with flange connection to the TIV,是什么意思?![]() ![]() upstream connection pipes with a make-up pipe, welded to the penstock, and with flange connection to the TIV,
问题补充: |
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