英语词汇check-valve lever spring怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	check-valve lever spring
释义	check-valve lever spring 简明释义止回阀杆弹簧网络释义 1 ?止回阀杆弹簧 ... check-valve lever 止回阀杆 check-valve lever spring 止回阀杆弹簧 check-valve nozzle 止回阀喷嘴 ... 短语 1 check valve lever spring 止回阀杆弹簧双语例句 1 Spring-actuated valve to be used on pump discharge. Swing check with outside lever and spring to be used on sump, sewage and storm drain lines. 弹簧执行机构止回阀用于管道排放。外置操作手柄和弹簧执行机构的旋启式止回阀用于污水坑、排污和雨水排泄管道。
随便看	hour of right occension hour of sleep hour of work and output hour-out line hourplate hour plate hour pointer hour-prescription of acupoints hour prescription of acupoints hour rack hour rate hour rate variance hour recording hours hour's hours a day hourslong hourslong hour snail hours of attendance hours of combustion hour of daylight hours of duty hours of labor hours of labour

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