screw-down的意思|示意

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screw-down相关短语

1、 screw down 用螺丝钉固定住,约束,压下

2、 screw down valve 旋压阀,螺旋阀,螺杆阀

3、 screw-down valve 螺旋关闭阀

4、 screw down gear 压下机构

5、 screw-down stop valve 螺杆向下止动阀,螺旋阀

6、 screw-down rate 压下率

7、 brass screw down bib cock 黄铜水龙头

8、 screw-down crown 压下冠

9、 electric screw down gear 电动压下装置