名词短语
中文翻译：变量采样
同义词：
['variable sampling', 'variable selection']
例句：
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1.In this study, we used a variable sampling method to collect data from different regions.
在这项研究中，我们采用了一种变量采样方法来收集来自不同地区的数据。
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2. The research team conducted a variable sampling of the population to ensure representativeness.
研究团队对人群进行了变量采样，以确保代表性。
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3. The results of the variable sampling were used to adjust the model parameters.
变量采样结果被用来调整模型参数。