screw valve的意思|示意

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screw valve相关短语

1、 screw down valve 旋压阀,螺旋阀,螺杆阀

2、 elevating screw valve 升杆阀

3、 screw lift valve 螺旋提升阀

4、 screw-down valve 螺旋关闭阀

5、 screw-down stop valve 螺杆向下止动阀,螺旋阀

6、 inside screw stop valve 内螺纹截止阀

7、 gas valve screw 气阀螺钉

8、 outside screw and yoke valve 外螺旋轭阀

9、 inside screw lift check valve 内螺纹升降式止回阀

screw valve相关例句