graduating valve
短语词组
- graduating g valve spring 節制閥彈簧
- graduating g valve 節制閥
- graduating valve spring [鉄路][機]節制閥彈簧;遞開閥簧
- equalizing graduating valve 均衡遞動閥;均衡遞開閥
- graduating valve lever 遞開閥杆
- emergency graduating valve 緊急遞開發
- graduating valve ring 節制閥彈簧 返回 graduating valve