Through the failure analysis of connecting bolt of down rod, it points out that it is not correct to put the thinner nut outer side if the double nut anti-loose method is adopted.

通过对游梁式抽油机对接式连杆下接头连接螺栓的失效分析，指出了采用双螺母防松时，将薄型螺母放置在外侧是不恰当的。

youdao

youdao

He looked down to relieve the pain of his neck, and stared at the rusty chain at his feet, which coiled around a metal rod.

他低下了头来缓解脖子的疼痛，眼睛停留在脚下生锈的铁链上，那铁链绕在一根金属杆上。

youdao

But when pushing A-Rod down from 3rd to 5th in the lineup for Game 4 failed to produce more productive yields, Coach Girardi had given his big dog the last bone of this particular series.

FORBES: Benching A-Rod For Decisive Game 5 Embodies Strong Leadership from Yankees Manager Joe Girardi

He couldn't believe how strong she felt, how much pressure she put on his wrists when, with a jolt, she pulled his rod tip almost down into the water.

FORBES: In Search Of Sowbelly

Cheshire East Council's environment portfolio holder Rod Menlove said stepping down from his portfolio was his "only honourable course of action".

BBC: recycling centre at Lyme Green