gas duct
短语词组
- waste gas main duct 废气总管
- hot gas outlet duct 热空气出口管
- gas outlet duct 气体出口管
- gas main duct 煤气总管
- gun gas bleed duct 机炮排烟导管
- seal gas extraction duct 密封气体抽气管
- gas exhaust duct 排气管道
- hot -gas supply duct 高温气体供气管道
- kiln exhaust gas duct 窑排气管 返回 gas duct