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čiastočne halogenovaný chlórfluórovaný uhľovodík
environ.
部分卤代
碳氢化合物的氢原子已经部分取代氯氟。它们被用于制冷、空调、包装、保温、或溶剂和气溶胶推进剂。因为当它们漂流到大气时,不会对上部大气圈的臭氧造成破坏。
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