With a supply of compressed air, the large balloon inflated in a matter of seconds.
大气球注入压缩空气后, 几秒钟便膨胀了起来。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
英语听力 | 双语精读 But in healthy people, alveoli stay properly inflated because they're full of chemicals called pulmonary surfactants that make the small alveoli more stretchy and less squeezy, balancing the pressure between air sacs.
但在健康
人体内,肺泡会适当
保持充气状态,因为肺泡中充满了一种叫做肺表面活性剂
化学物质,这种物质能使小肺泡更有弹性,挤压力度更小,从而平衡气囊之间
压力。
报