离心式气体压缩机
centrifugal gas compressor
气体离心分离
gas centrifuges
separation by gas centrifuge
气体离心浓缩厂
gas centrifuge enrichment plant
气体-气体热交换顺
gas-to-gas heat exchanger
盐碱分离离心机
Salt-soda Separating Centrifuge
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