名词
中文翻译：保护比率
同义词：
['protective index', 'protective factor']
例句：
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1.The company's profit margin is a key measure of its competitiveness.
公司的利润率是衡量其竞争力的关键指标。
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2. The new policy aims to protect the environment while promoting economic growth.
新政策旨在在促进经济增长的同时保护环境。
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3.The protective ratio for this product is 98%.
该产品的保护比率为98%。