Y-valve 角阀Z...back wash valve 逆洗阀...by-pass(valve) 旁路阀;旁通阀...Vieussens's valve 维厄桑氏瓣(前髓帆)...absorber valve 吸收管...valve n.活瓣,阀,活门vt.装阀,...nonreturn valve 止回阀...valve pit 阀井...actual cash valve 实际现金价值...vacuum valve 真空阀...vacuum relief valve 真空安全阀;真空解除阀;真空泄...valve pin 真空管脚阀销...vacuum release valve 真空泄漏阀...ball non-return valve 球形止回阀...valve for general use 通用阀...valve the gas 放气...jacket safety relief valve 保温套安全阀...valve tray 浮阀塔板...valve rock arm 阀摇臂...johnson valve 约翰笙阀...gas sampling valve 气体进样阀...
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