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...
他死于劳累过度引起的心脏病发作。He died of a heart attack brought on by overwork.他可能会因为劳累过度而英年早逝。He might burn himself out and go to an early grave.黑格注意到了他“看上去消瘦，非常劳累”的样子。Haig noted how he "looked pinched and rather tired"....