名词
中文翻译：初步精炼
同义词：
['preliminary treatment', 'preliminary analysis']
例句：
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1. The company is conducting a preliminary refinement of its product line.
该公司正在进行其产品线的初步精炼。
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2. Before we move forward with the project, we need to conduct a preliminary refinement of our plans.
在我们开始推进这个项目之前，我们需要对我们的计划进行初步精炼。
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3. The research team conducted a preliminary refinement of their hypothesis before presenting itto the committee.
研究小组在向委员会提出他们的假设之前进行了初步精炼。