extraction duct meaning in Chinese
吸出管道
Examples
- Fire resistance tests for service installations - smoke extraction ducts
辅助设施的防火检验.排烟管 - Fire resistance tests for service installations - part 8 : smoke extraction ducts
服务设施的防火试验.第8部分:排烟孔管道 - Exhaust extraction duct
排气抽气管 - Fire resistance tests for service installations - part 8 : smoke extraction ducts ; german version en 1366 - 8 : 2004
服务设施的防火检验.第8部分:排烟管道