以下为句子列表：
英文: Analyses and compares the energy consumption of circulating water pumps under different adjustment modes.
中文: 分析比较了不同调节方式下的循环水泵能耗。
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英文: Rotation Grid Series: they are mainly used at water inlet, sewage and rainwater lifting pump stations, water inlet of sewage treatment plants, to prevent grass, wood, garbage and fibrous matters from entering water pumps and other devices behind so as to
中文: 旋转式系列格栅主要用于取水口、污水及雨水的提升泵站、污水处理厂进水口等处，用于阻挡草木、垃圾、纤维状物质等杂物进入水泵和后续设备，以确保水泵及其它设备的正常运行。
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英文: Until now,there have been a few reports on the damage of the water pumps caused by sand and water cavitation.By use of the test loop for solid and liquid two phases,under the condition of 3%head drop,the damage location and relative degree of the sand and
中文: 目前含沙水汽蚀对水泵损伤方面的报导甚少，本文利用固液两相流试验台，对离心泵闭式叶轮在含沙水汽蚀时（3％扬程下降点）的损伤部位和相对程度进行了试验研究，并将此结果与清水介质发生汽蚀时的损伤情况[13]及含沙水无汽蚀情况下的磨损情况[7]相比较，对其差异进行了分析，为今后进一步探讨叶轮损伤机理和叶型改进提供了实验依据。
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