One end of the rotation axle is connected with an electromagnet by a pull rod and a weight rod.

转动轴的一端通过拉杆和重锤杆与电磁铁相连。

youdao

Because in the linear portion of the curve where Hooke's Law holds, I could hang a weight on the rope... or on the rod and I could let it oscillate vertically.

在曲线的胡克定律，所适用的线性区域内，在绳子上挂一重物。，或者挂在棒子上，然后让它垂直振荡。

youdao

If you let a baby grasp a rod and try to pull it away, he will cling more and more tightly until his whole weight is suspended.

如果你让一个婴儿抓住一根竿子，然后试着把竿子抽出来，孩子就会越抓越紧，直到他们整个重量都依附于此。

youdao

By deterring men from seeking help with their weight the NHS is only making a rod for its own back.

BBC: Too many men 'unconcerned' about weight health risks

To these boneheads we now add Rod Blagojevich and his bribe scandal, which lends weight to the idea that government has never been run by poseurs, windbags, sociopaths and self-dealers to the extent that it is today.

FORBES: Turning Around America--A Modest Proposal