亚洲AV成人精品一区二区三区四区|快播日韩美嘛豆一区|国产欧美激情a级免费|一级黄片AAA色一品|久久国产成人精品Av|谁有AV免费观看|成人高清国产视频|日韩区欧美区久久综合一区|在线观看黄色网页|亚洲欧美国产11

單詞乎

setscrew

音標['setskru:]
setscrew是什么意思、setscrew怎么讀

setscrew漢語翻譯

n. 定位螺釘
【機】 固定螺釘, 止動螺釘

setscrew英語解釋

名詞 setscrew:

  1. a screw that is used to adjust the tension on a spring
  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
0
糾錯