Warning: file_put_contents(/www/wwwroot/ppbbu/cp667.com/cache/31c42c12d557cc1ffeabeeded92c3461.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/cp667.com/index.php on line 55
ball-bearing英英字典_ball-bearing剑桥英语解释_ball-bearing柯林斯英文解释_淳朴汉英词典
淳朴汉英词典

ball-bearing

B 开头单词

柯林斯词典

    ball bearing (also ball-bearing) (ball bearings)

  • 1. N-COUNT Ball bearings are small metal balls placed between the moving parts of a machine to make the parts move smoothly. 滚珠轴承

    • 返回 ball-bearing