名词
中文翻译：性能估计
同义词：
['performance evaluation', 'performance assessment']
例句：
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1. The engineers are performing a performance estimation on the new machine.
工程师们正在对新机器进行性能评估。
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2.The company is performing an annual performance estimation to assess its progress.
公司正在进行年度绩效评估，以评估其进展。
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3. The manager needs to perform a performance estimation before making any decisions.
经理在做出任何决定之前需要进行一次绩效评估。