X线影像增强电视装置
X-ray image intensifier TV umit
西气东输二线管道工程
the 2nd West-East Pipeline Project
曲线管道受力分析
force analysis of curved line pipeline
偏心曲线管道
annular curved eccentric pipe
埋线工业吸水胶管
steel wire embedded water suction rubber hose
埋线缝扎法
Transfixion of implanting suture
埋线法立体框架式
Three dimentional structure
可移动式管道预制生产线
mobile production line of pipe prefabrication
管道线路剖面图
profile of pipe-line route
最佳视线长度
Optimum line length of sight
预警监视指挥
early warning surveillance command