名词
中文翻译：有效浓度
同义词：
['efficient concentration', 'effectiveness']
例句：
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1. Thenew drug has an effective concentration of 0.5 mg/mL.
新药的有效浓度为0.5 mg/mL。
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2. The scientist used a high-speed centrifuge to achieve an effective concentration of the sample.
科学家使用高速离心机实现了样品的有效浓缩。
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3. The researchers found that the effective concentration of the solution increased with increasing temperature.
研究人员发现，溶液的有效浓度随着温度的升高而增加。