名词
中文翻译：每单位时间
同义词：
['per unit of time', 'per time interval', 'per unit period']
例句：
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1. The project is expected to be completed within the next six months.
该项目预计在未来六个月内完成。
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2. The company's performance has been steadily improving over the past year.
该公司过去一年的业绩稳步提升。
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3. The teacher explained the concept of per time unit in detail.
老师详细解释了“每单位时间”的概念。