- 氮气: nitrogen; nitrogen gas
- 表: outside; surface; external
- 气表: gas gage; gas gauge; gas meter; gas metre; gasometer
- 氮气: nitrogen; nitrogen gas◇氮气灯 nitrogen lamp; 氮气瓶 nitrogen cylinder; 氮气容器 nitrogen gas container; nitrogen gas cylinder
- 充气表: air inflation indicator
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