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Terms containing knocking valve | all forms | in specified order only
SubjectEnglishChinese
tech.knocking of the valve阀门碰撞
oilknocking valve捶拍阀
oilknocking valve冲击开关
oilvalve knock阀敲击
auto.valve knock气门发响敲击声
dril.valve knock阀体敲缸
auto.valve knocking气门发响敲击声