名词
中文翻译：残余率
同义词：
['remaining pitch', 'residual volume', 'residual pressure']
例句：
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1. The residual pitch in the oil is a significant factor affecting its quality.
油中的残余率是影响其质量的一个重要因素。
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2.The residual pitch in the paint was too high, which made it difficult to apply.
油漆中的残余率太高，很难涂抹。
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3.The residual pitch in the coal was measured to determine its quality.
煤炭中的残余率被测量以确定其质量。