名词
中文翻译：密度指示仪
同义词：
['density indicator', 'density gauge']
例句：
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1. The density indicating meter isused to measure the density of materials.
密度指示仪用于测量材料的密度。
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2. The densityindicating meter was used to determine thecomposition of the sample.
密度指示仪被用来确定样本的成分。
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3. The density indicatingmeter can be used to detect any changesin the material's density over time.
密度指示仪可以用来检测材料密度随时间的变化。