名词
中文翻译：发动机性能测试同义词
同义词：
['engine test', 'engine performance evaluation']
例句：
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1. The engineers conducted a thorough engine performance test before the launch.
在发射前，工程师们进行了彻底的发动机性能测试。
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2. The company's new car model underwent an engine performance test to ensure it meets safety standards.
该公司的新车型进行了发动机性能测试，以确保其符合安全标准。
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3. The test results showed that the engine's efficiency had improved significantly after the maintenance work.
测试结果显示，经过维护工作后，发动机的效率有显著提高。