名词
中文翻译：Unknown
同义词：
['initial stage polymerization', 'initial stage polymerization', 'primary stage polymerization']
例句：
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1. The first stage of the reaction is crucial for the overall outcome.
反应的第一阶段对于整体结果至关重要。
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2. During the initial stage of the process, we need to ensure that all materials are properly mixed.
在工艺的初期阶段，我们需要确保所有材料都充分混合。
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3. The first stage of this project involves research and development.
这个项目的第一阶段涉及研究和开发。