The operation principle of an extendable and retractable crash energy absorbing device was introduced.
介绍了可伸缩式汽车碰撞缓冲吸能装置的工作原理。
This paper introduced a mechanical energy-absorbing device used in sled crash test.
本文介绍了一种用于台车碰撞试验的机械缓冲吸能装置。
Several application technique problems of electric eddy-current power tester in use of energy-absorbing device are discussed as well.
介绍了电涡流测功机的结构、工作原理、外特性，以及电涡流测功机作为能量吸收装置的几个应用技术问题。
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