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ji fei dan da
Author(s): 
Pages: 18
Year: Issue:  6
Journal: Farm Machinery

Keyword:  水泵叶轮水泵运行吸水管底阀机泵管水;
Abstract: <正> 农村浇地时,有的机手往离心泵里填完土后再灌水起动,此法虽然能解决因水泵吸水管、底阀漏气而难于起动的问题,但害处极大,严重加剧水泵叶轮和轴承等的磨损。实在不可取。还有的机手在填土灌水将水泵起动出水后,在水泵运行中就是只
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