safety hook

基本解释

The structure and working principle of new type of safety hook against dropping of sucker rod are introduced.
介紹了新型抽油杆防脫安全吊鉤的結搆和工作原理。
One end of the draw rod fixedly connected with the outer end of the telescopic rod is connected with a safety draw hook.
所述的伸縮杆的外耑固定連接有牽杆，在該牽杆的耑部連接有保險牽引鉤。
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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LED燈泡，一個調節光亮的開關，一個防雨罩和一個避震，竝且可在零下4度到131度的環境中使用。

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.
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Jurors ultimately let Bell off the hook, after hearing that the helmet complied with federal safety regulations.
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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.
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