Unlike existing alternatives, such as ammonia or methelchloride, cfcs were nonflammable and non toxic, meaning they wouldn't burst into flames or cause deadly gas leaks.

与现有的替代品(如氨或氯甲烷)不同 氯氟烃不易燃 无毒 这意味着它们不会起火或导致致命的气体泄漏。