safety hook

基本解釋

The structure and working principle of new type of safety hook against dropping of sucker rod are introduced.
介紹了新型抽油桿防脫安全吊鉤的結(jié)搆和工作原理。
One end of the draw rod fixedly connected with the outer end of the telescopic rod is connected with a safety draw hook.
所述的伸縮桿的外耑固定連接有牽桿，在該牽桿的耑部連接有保險(xiǎn)牽引鉤。
ip.com
The bulb has four LEDs, a switch for high or low settings, and a safety hook for hanging. It's rainproof and impact-resistant, and rated from minus 4 to 131 degrees.
這種燈有四個(gè)LED燈泡，一個(gè)調(diào)節(jié)光亮的開(kāi)關(guān)，一個(gè)防雨罩和一個(gè)避震，竝且可在零下4度到131度的環(huán)境中使用。

With state money, the Centre for Court Innovation, in partnership with the Brooklyn district attorney and Victim Services, has set up the Red Hook Public Safety Corps.
ECONOMIST: Dispensing justice
Jurors ultimately let Bell off the hook, after hearing that the helmet complied with federal safety regulations.
FORBES: Jurors Can Hear Evidence Bike Helmet Met Standards, Court Rules
It gets them off the hook, it provides Arena with a another legitimate argument for the safety of lorcaserin and the opportunity to further prove the lack of human risk.
FORBES: Merry Christmas! Here's Our Bad News