名词
中文翻译：物理单位
同义词：
['mechanical unit', 'physical quantity']
例句：
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1.The measurement of distance is based on the speed of light in a vacuum.
距离的测量基于光在真空中的速度。
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2.The temperature scale is based on the boiling point of water at different altitudes.
温度尺度是基于不同海拔处水沸腾点建立的。
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3.The weight of an object is determined by its mass and the gravitational force acting on it.
物体的重量由其质量和作用于它的引力决定。