graduating valve
短語詞組
- graduating g valve spring 節(jié)制閥彈簧
- graduating g valve 節(jié)制閥
- graduating valve spring [鐵路][機(jī)]節(jié)制閥彈簧;遞開閥簧
- equalizing graduating valve 均衡遞動(dòng)閥;均衡遞開閥
- graduating valve lever 遞開閥桿
- emergency graduating valve 緊急遞開發(fā)
- graduating valve ring 節(jié)制閥彈簧 返回 graduating valve