名词
中文翻译：乙烯
同义词：
['ethane', 'propylene']
例句：
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1.Ethylene is a colorless gas that can be used in the production of plastics.
乙烯是一种无色气体，可用于生产塑料。
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2. The ethylene levels in the atmosphere have been increasing due to industrial activities.
由于工业活动，大气中的乙烯含量正在增加。
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3. Ethylene is also known for its ability to stimulate plant growth.
乙烯还因其促进植物生长的能力而闻名。