tester主要用作为名词，用作名词译为“天盖；检验器；试验员”。
一、短语搭配：
1、Impact tester
冲击试验机；冲辉验机；撞_试验机；冲击试验器。
2、battery tester
电池测试器；蓄电池试验器电池测试仪；英文版电池测试仪。
单词用法：
1、N-COUNT A tester is a person who has been asked to test a particular thing.
测试员; 试验员
2、N-COUNT A tester is a machine or device that you use to test whether another machine or device is working correctly.
测试器；测试仪 [usu n N] 。
例：I have a battery tester in my garage.
我的车库里有台电池测试仪。
