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DEVICE FOR ADJUSTING WATER LEVEL IN WATER-DEVELOPMENT WORKS
DEVICE FOR ADJUSTING WATER LEVEL IN WATER-DEVELOPMENT WORKS
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机译:在水利工程中调节水位的装置
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摘要
device for regulating the level of hydropower plants, which is set between the upper and lower бьефами водовыпуск on the club head.in the upper бьефе / 4 - 4i is a variable length tube, movable in th
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