名词短语
中文翻译：反应活性寿命同义词
同义词：
['reactivity', 'reactivity lifespan']
例句：
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1. The reaction is highly reactive, meaning it reacts quickly with other substances.
该反应非常活跃，意味着它与其他物质快速反应。
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2. The reactivity of the material is crucial for its use in certain applications.
该材料的反应性对于其在特定应用中的使用至关重要。
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3. The reactivity lifetime of the material was measured to ensure its longevity in service.
测量了材料的活性寿命，以确保其在使用过程中的持久性。