热热热久久久免费视频|第四色五月婷婷五月天AV|日韩高清无码免费一级大片|日本成人手机在线视频|中文字幕无码Av在线|台湾a级别黄片免费看|欧美一级性爱亚洲第一性爱|A级黄色电影久草大|www.91精品视频|亚洲AV资源欧洲无码在线观

單詞乎

set screw

set screw是什么意思、set screw怎么讀

set screw漢語翻譯

【化】 定位螺釘; 固定螺釘

set screw英語解釋

名詞 set screw:

  1. a screw that is used to adjust the tension on a spring
    同義詞：setscrew
  2. a screw (often without a head) that fits into the boss or hub of a wheel or cam etc. and prevents motion of the part relative to the shaft on which it is mounted
    同義詞：setscrew
0
糾錯