manual respirator造句

例句与造句

1. He also invented the Western Reserve Midget, a portable manual respirator that is easy to carry and delivers a brief general anesthetic.
2. The wife and daughter of 69-year-old Hanjiro Shibihara, stricken with muscular dystrophy and unable to breathe on his own, frantically dug out a manual respirator when the quake knocked out power for his electric one.
3. It's difficult to find manual respirator in a sentence. 用manual respirator造句挺难的