短語(yǔ)詞組短語(yǔ)main steam valve strainer 主汽門(mén)濾網(wǎng)steam strainer valve 濾汽閥motive steam strainer 主蒸汽濾網(wǎng)steam strainer spring [鐵路]濾汽網(wǎng)彈簧 返回 steam strainer