名词中文翻译
中文翻译：粉末活性
同义词：
['powder activity', 'powder activity rate', 'powder activity index']
例句：
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1. The powder activity of the sample is 90%.
样品的粉末活性为90%。
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2. The powder activity of the sample is 90%.
样品的粉末活性为90%。
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3. The powder activity of the sample is 90%.
样品的粉末活性为90%。