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n.氯氟甲烷
1、Most of the chlorofluoromethanes reside in the lower stratosphere.───大多数氯氟甲烷存留在平流层下部。
2、The chlorofluoromethanes are used principally in aerosol spray cans and as refrigerants.───甲烷存留在平流层下部。
1、The chlorofluoromethanes are used principally in aerosol spray cans and as refrigerants.
2、Most of the chlorofluoromethanes reside in the lower stratosphere.