钠汽灯

例句：

1. 1. The sodium gas lamps are used in hospitals to provide lighting.
   钠气灯在医院被用来提供照明。
2. 2.The sodium gas lamps were invented bya scientist named Dr. Smith.
   钠气灯是由名叫史密斯的科学家发明的。
3. 3.The sodium gas lamps have been usedfor many years and are still popular today.
   钠气灯已经使用了多年并且仍然很受欢迎。