名词短语
中文翻译：每次通过的减少量
同义词：
['reduction', 'reduction in quantity', 'reduction of quantity', 'decrease per unit']
例句：
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1. Thecompany is looking to reduce its carbon footprint by 20%.
该公司正在寻求通过减少20%来降低其碳足迹。
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2. The price has decreased per unit since the last report.
自上次报告以来，价格已经按单位下降了。
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3.The efficiency of the process was reduced per unit.
该过程的效率按单位降低了。