名词
中文翻译：闭环链烃
同义词：
['closed-loop hydrocarbon', 'closed-chain hydrocarbon']
例句：
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1. Theclosed-chain hydrocarbon is a type of petroleum that is used in the production of plastics and other materials.
闭环链烃是一种石油类型，用于生产塑料和其他材料。
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2. The closed-chain hydrocarbon is a source of energy that can be used to power vehicles and generate electricity.
闭环链烃是一种能源来源，可以用于为车辆提供动力和发电。
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3.The closed-chain hydrocarbon is a chemical compound that has been found in various fossil fuels.
闭环链烃是一种化学化合物，已在各种化石燃料中被发现。