名词
中文翻译：Unknown
同义词：
['hydrometer scale', 'hydrometer graduation', 'hydrometer graduation scale']
例句：
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1.The hydrometer scale is used to measure the specific gravity of water.
水比重计刻度用于测量水的密度。
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2.The hydrometer scale was used to determine the quality of the water in the lake.
水比重计刻度被用来测定湖中水的质量和纯度。
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3. The hydrometer scale is an essential tool for measuring the density of liquids.
水比重计刻度是测量液体密度的必备工具。