基本解释[经济学]螺旋提升阀螺旋晋升阀英汉例句双语例句Unscrew the Allen screw in the middle of valve cap and lift up the cap just enough to pick up the old diaphragm.旋松阀帽中间的内六角螺丝，并且提起阀帽，正好足够拿走旧阀膜。www.instrument.com.cnscrew lift valve更多例句词组短语短语screw -lift valve 螺旋提升阀inside screw lift check valve 内螺纹升降式止回阀screw lift valve更多词组专业释义经济学螺旋提升阀螺旋晋升阀