信号: signal; semaphore; gun管道装置: plumbing installation卫生管道装置: plumbing installation信号信道装置: signaling channel unit信号管: signal pipe管道装炉: pipeline charging管道装卸: pneumatic conveyor system打开信号管: open signal tube关闭信号管: close signal tube红色信号管: red tube列车信号管: train signal pipe信号管雷管: signal tube detonator船用管道装置用液滴分离器: standard specification for entrainment separators for use in marine piping applications赤道装置: equatorial街道装置: street furniture上下道装置: uand down track device双道装置: dual channel device通道装置: earth moving machinery access systems下水道装置: drainer信道装置: channel unit雷达信号管制: radar blackout信号管理控制: signal supervisory control信号管起爆器: signal tube starter管道装修工；清扫工具: swabber进气函道装置: air intake and duct system
