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1.The engineer used the test box to check the quality of the new machine.
工程师使用测试箱检查新机器的质量。
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2. The scientist conducted a series of tests in the test box to gather data for their research.
科学家在测试箱中进行了一系列的测试,以收集数据进行他们的研究。
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3. The technician carefully placed the samples into the test box before starting the experiment.
技术员小心地将样品放入测试箱,然后开始实验。