然而，取代氯氟烃，包含在塑料和制冷剂中的臭氧亲和物质——氟氯化碳（HCFs）和氟氯烃（HFCs），同样也是强大的温室气体。

However, the ozone-friendly substances that have replaced CFCs in plastics or as refrigerants - hydrochlorofluorocarbons (HCFCs) and hydrofluorocarbons (HFCs) -- are also powerful greenhouse gases.

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我公司“18.30”工程成功实现了用醇烃化精制工艺取代铜洗工艺，达到了预期目标。

Replacing the process of copper liquor wash with methanolizing and alkylating was successful in "18·30" project in our company.

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当烃(典型的烷烃)的几个或全部氢被氯和氟取代而生成的化合物。

Compounds formed when some or all of the hydrogen atoms in a hydrocarbon (typically an alkane) have been replaced with chlorine and fluorine.

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