Based on it, a design procedure of liquid and air valve springs has been suggested.
在此基础上，着重研究了液阀弹簧和气阀弹簧的设计方法。
To produce goods with the valve springs, valve is just one of many new applications.
用阀门来制造货泉，只是阀门的众多最新用途之一。
As this occurs, valve springs pull the valve tightly closed against its opening, called the valve seat.
当这发生时，气门弹簧紧紧地封闭气门口，叫做气门座。
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