air relay

• 气,电触式气动量仪

air relay的用法和样例：

例句

1. Ida was choking with the dry air.
   空气干燥，艾达感到喘不过气来。
2. He sucked in air, then went under the water again.
   他深深吸了一口气又潜到水里。
3. How is heat passed in the air by convection?
   热量是怎样通过对流在空气中传递的？
4. Still, the relay had to be cut short.
   尽管如此，传递路线还是缩短了。