yur ba

ཡུར་བ
tunnel, (irrigation) ditch or (by extension) pipe (as in water pipe) (from ATG). [mss] [RY]

1) (Tha mi dad pa,, sleep; 2) irrigation trench, irrigate, [arrange] [irrigation] channels/ canals/ ditch, drain, aqueduct, conduit, water-course [IW]

ditch, drain; yur ba, yur ba, yur ba intr. v.; to irrigate, arrange irrigation channels / canals. ditch, drain, aqueduct, conduit, water-course, trench [RY]

ditch, drain, irrigate, arrange irrigation canals, aqueduct, conduit, watercourse, irrigation channel, opposite bank of river or lake [JV]