圆形断面管道
pipeline with circular section
坝下游面管道
Penstock Laid on Downstream Face of Dam
变截面管道
variable cross-section tube
储罐-波纹管-管道系统
tank bellow pipeline ( TBP ) system
道面管理系统
APMS
pavement management system
airport pavement management system
杆井管道管理
pole and pipeline management
井筒冻结管断管的处理
Treatment of shaft freezing pipe broken