[网络] 气阀弹簧；气门弹簧 spring valve: 弹簧阀; 弹簧活门; 气门弹簧valve spring: 阀弹簧; 阀簧; 阀门弹簧; 气门弹簧; 汽门弹簧relay valve supply valve spring: 继动阀供给阀簧air valve spring: 气阀弹簧application valve spring: 控制阀簧下载手机词典可随时随地查词查翻译
