check valve〔名词〕单流阀详细»
check valve〔名词〕回压阀,单流阀,止回阀详细»
check valve止回阀,单相阀详细»
check valve〔名词〕单路输电线,单传输线路,关闭阀,止回阀,单向阀详细»
check valve单向〔止回,止逆〕阀详细»
check valve单向阀,防逆阀详细»
check valve单向阀，止回阀详细»
逆止阀backbone pressure valve;backbone valve;backbonepressure valve;cut off valve;cutoff valve详细»
逆止阀back valve;backwater gate;cut off valve;inverted valve详细»
逆止阀back flow valve;back pressure valve;check valve;cut-off valve;non-return valve详细»