As indicated in the section on simple machines, a screw ACTS with a wedging action and consists of a circular cylinder (or truncated cone) with a helical groove in it.

如在简单的机器上的区段所指出的，一个螺丝钉以一个楔住行动行事而且有圆形圆筒(或者切断了圆锥体)与一螺旋状的在它里面的凹槽。

youdao

Now, add a locknut groove on the right edge of the section to the selected shaft section.

现在，将剖面右侧边上的防松螺帽槽加入至选取的轴剖面中。

youdao

In most cases the cross section of the bearing rings of a stainless steel deep groove ball bearing is very thin and the side faces correspondingly slim.

在多数情况下，不锈钢深沟球轴承的轴承圈横截面很薄，因此侧面也就很薄。

youdao

With an ensemble that's sonically diverse (three lead vocalists, a horn duo and congas, in addition to a full rhythm section) and also spanning a broad range of ages and ethnicities, Kings Go Forth has created a groove all its own.

NPR: Kings Go Forth On 'World Cafe: Next'