If you had 10 different parameter combinations to test in JUnit, you would be forced to write 10 test cases.

如果有10个不同的参数组合需要在JUnit中测试，您只能写10个测试用例。

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To comply with these regulations, automakers are being forced to develop ultra low-emission engine systems by optimizing combinations of technologies related to combustion, aftertreatment and fuel.

为了满足这些排放法规，汽车制造商不得不优化相关的燃烧、后处理和燃料等技术，从而开发超低排放发动机系统。

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Doctors fear that many people now on drug cocktails may become resistant to their regular drug combinations and will be forced to move on to kitchen sink therapy.

CNN: 'Kitchen sink' therapy last resort for some HIV patients