气体-气体热交换顺
gas-to-gas heat exchanger
柱形界面稳定性
stability of cylindrical interface
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
表面气体辅助成型
external gas injection moulding
超临界气体抽提
supercritical gas extraction