氯氟甲烷主要使用在气溶胶喷雾罐和作为冷冻剂.The chlorofluoromethanes are used principally in aerosol spray cans and as refrigerants.在那里, 较冷的空气使冷冻剂冷凝,并在此过程中变热.There, cooler air condenses the refrigerant and becomes heated during the process.氢是...
他惊愕地盯着自己最宠爱的孩子，满心恐惧。He stared at his favourite child, dismayed, filled with fear.他觉得备受宠爱，很是自在。He felt pampered and at home.总统宠爱的顾问班子中的一员a member of the President's favoured circle of advisers...