名词
中文翻译：Unknown
同义词：
['primary test', 'primary examination', 'preliminary test']
例句：
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1. The first-order test results showed that the product was not defective.
第一次测试结果显示产品无缺陷。
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2. The primary test for this new drug is to determine its efficacy.
对这种新药的初步测试是确定其有效性。
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3. Before conducting a final evaluation, we conducted several preliminary tests on the sample.
在最终评估之前，我们对样本进行了几次初步测试。