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
放射性气体废物
radioactive gaseous waste
工作气体气压和充气配比
pressure and proportion of gas mixture