名词短语
中文翻译：观察方程
同义词：
['observational equation', 'observational model']
例句：
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1. The scientists developed an observational equation to predict the weather.
科学家们开发了一个观察方程来预测天气。
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2. The researcher used an observational equation to study the relationship between variables.
研究员使用一个观察方程来研究变量之间的关系。
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3. The data collected by the observer was used to validate the observational equation.
观察者收集的数据被用来验证观察方程。