名词
中文翻译：特征空间
同义词：
['characteristic dimension', 'characteristic dimensionality']
例句：
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1. In the study of machine learning, understanding the characteristics of a dataset is crucial.
在机器学习研究中，理解数据集的特性至关重要。
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2. The research team has identified several key characteristics that define the new product line.
研究团队已经确定了几个关键特性，这些特性定义了新产品线。
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3. To improve efficiency, we need to understand the characteristics of our work environment and how they affect our productivity.
为了提高效率，我们需要了解我们工作环境的特性以及它们如何影响我们的生产力。