气体-气体热交换顺
gas-to-gas heat exchanger
奥氏体气体氮碳共渗
gas nitrocarburizing at austenite condition
半导体气体传感器
Semiconductor air sensor
semiconductor gas sensor
semiconducting gas sensors
分离气体色谱仪
partion gas chromatograph
工作气体气压和充气配比
pressure and proportion of gas mixture
光色气体观察屏
photochromic gas viewing screen
激光热解气体色谱法
laser pyrolysis gas chromatography