名词
中文翻译：Unknown
同义词：
['utility volume', 'useful capacity', 'effective volume']
例句：
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1. The engineerdesigned a useful volume for the new machine to store its parts.
工程师为新机器设计了一个有用的体积来存放其部件。
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2.The company's utility volume has increased significantly since they started using renewable energy sources.
自从公司开始使用可再生能源源以来，公司的有用容量显著增加。
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3.The scientist used an effective volume of liquid to dissolve the solid substance.
科学家使用了有效的体积的液体来溶解固体物质。