It can test threecombination switches of same or different models simultaneously and consequently shorten a great deal of the testing Period of combination switches.
它可以一次性测试三台同型号或不同型号的汽车组合开关，大大地缩短了组合开关的测试周期。
2
The problem came from a combination of three choices.
这个问题来自三个选择的组合使用。
3
The severity of a usability problem is a combination of three factors.