基本解釋[鐵路][機(jī)] 節(jié)制閥，調(diào)節(jié)閥；階段制動(dòng)閥詞組短語(yǔ)短語(yǔ)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(kāi)閥簧equalizing graduating valve 均衡遞動(dòng)閥;均衡遞開(kāi)閥graduating valve lever 遞開(kāi)閥桿graduating valve更多詞組專業(yè)釋義交通運(yùn)輸工程節(jié)制閥