n.加力器(辅助装置；援助者)
But practice needing to use the assistor such as a few float to fetters in deep water. 但是在深水中练习需要使用一些浮漂等辅助器械。
The paper introduces the application and working principle of assistor of belt conveyer and expounds the method of lectotype design. 介绍了带式输送机助力器的用途及工作原理，阐述了选型设计的方法。
Series 78ZYT DC PM Motor is our new design used for auto assistor, auto valve control, or for driven or implementanry element of other purposes. 说明：78ZYT系列直流永磁电动机是我公司开发的新系列产品。可用于汽车加速器、自动阀门控制等装置的驱动元件，也可用作其他驱动或执行元件。
The paper introduced the development results of rubber parts for vaccum assistor of CA1040 light-duty truck, including formula design, production technology and test etc. 介绍CA1040轻型车真空助力器橡胶件的研制情况。包括配方设计，生产工艺，台架试验等。
The buffer device can prevent quick sliding down from damaging the climbing assistor or crushing the people because of the gravity acceleration, so that the use is safer. 有缓冲装置，可避免重力加速度使其快速下滑而摔坏助爬器或砸伤人，使用更安全。
