名词
中文翻译：两阶段最小二乘估计器
同义词：
['two-step least squaresestimator', 'two-stage least squaresestimator']
例句：
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1. Thetwo-stage least squares estimatoris a powerful tool for analyzing complex datasets.
两阶段最小二乘估计器是分析复杂数据集的强大工具。
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2. The two-stage least squares estimator was developedto improve the accuracy of regression models.
两阶段最小二乘估计器被开发出来，以改进回归模型的准确性。
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3. The two-stage least squares estimator hasbeen widely used in various fields such aseconomics and finance.
两阶段最小二乘估计器在经济学和金融领域得到了广泛应用。