valve stem〔名词〕阀杆详细»
valve stem〔名词〕阀门心详细»
valve stem〔名词〕阀杆,气门杆详细»
valve stem阀杆,气门杆详细»
valve stem阀杆[ 将启闭力传递到启闭件上的主要零件。(IBL)]详细»
valve stem〔名词〕气门杆详细»
valve stem〔名词〕阀杆,气门杆,阀轴详细»
valve stem〔名词〕阀杆详细»
阀杆valve spindle;valve handle;valve rod详细»
阀杆valve handle;valve lever;valve link;valve rod;valve spindle详细»