名词
中文翻译：每单位
同义词：
['unit', 'unit of measure']
例句：
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1. The company's sales per unit have increased by 20% since last year.
公司去年至今年相比，销售额每单位增加了20%。
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2. The cost per unit has decreased significantly due to the new technology.
由于新技术的应用，成本每单位已经显著下降。
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3. The product is sold in units of 500 pieces.
该产品以500个单位出售。