免费成人A片免费看|亚洲有码视频在线观看|美女毛片视频激情超碰|91精品国产欧美一区二区成人|久久无码精品一级A片一高潮不断|亚洲性爰专区三级片不卡免费|欧洲另类AV无码国产免费看|免费观看黄片视频|三级黄色网片在线|国产精品一区二区三区网址

單詞乎

setscrew

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

setscrew漢語(yǔ)翻譯

n. 定位螺釘
【機(jī)】 固定螺釘, 止動(dòng)螺釘

setscrew英語(yǔ)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(cuò)