名词
中文翻译：比例法
同义词：
['ratio method', 'ratio technique']
例句：
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1.The ratio method is used to calculate the weight of a substance based on its volume.
比例法用于根据物质的体积计算其重量。
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2. In this experiment, we will use the ratio method to determine the optimal concentration for the solution.
在这个实验中，我们将使用比例法来确定溶液的最佳浓度。
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3.The ratio method is often used in chemical analysis to measure the concentrations of different elements in a sample.
比例法在化学分析中常被用来测量样品中不同元素的浓度。