高压高纯度气体
high pressure and high purity gas
高亮度高纯度发光二极管
high brightness and high purity LED
气体-气体热交换顺
gas-to-gas heat exchanger
10 hPa等压面位势高度气候图
10 hPa geopotential height field
标准密度高度
standard density altitude
高纯度CO2
high pure CO 2
high-purity carbon dioxide