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1. The cistrans test is a method used to measure the speed of sound in air.
逆行测试是一种测量空气中声速的方法。
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2. The cistrans test was conducted to determine the effectiveness of the new drug.
进行了逆行测试以确定新药的有效性。
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3. The cistrans test is often used in medical research to study the properties of materials.
逆行测试在医学研究中常用于研究材料的性质。