safety spring lever 安全弹簧杆
Lever spring 变速杆弹簧 ; 杠杆式弹簧 ; 拨叉弹簧
Lever spring seat 变速杆弹簧座
spring piston lever 弹簧瓣杠杆
speed shifting lever spring 变速杆弹簧
priming lever spring 起动杆弹簧
spring seat lever 弹簧座杠杆
Each string is attached to a lever, which is in turn attached to a spring.
每根琴弦附在每一杠杆上，各杠杆依次连接每一根弹簧。
Note: On pump discharge, the preferred check valves are an in-line spring loaded, swing design with lever and weight or lever and spring.
注意：在泵排泄口，首选的止回阀是管内弹簧负载，带杠杆和压铁或杠杆和弹簧的旋启式止回阀。
Three types of backpressure valves are diaphragm, spring and weighted lever.
有三种类型的回压阀，即隔膜式、弹簧式和负荷杆式。
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