English AGROVOC
uf
Collecting ditches
uf
Cross draining
uf
Draining ditches
uf
Interceptor drains
uf
Junction drains
uf
Longitudinal draining
uf
Main drains
uf
Outlet ditches
BT
Drainage
NT
Mole drainage
NT
Open ditch drainage
RT
Canals
RT
Drainage equipment
(Lao)
ລະບົບການລະບາຍນ້ຳ
(French)
Réseau de drainage
(Spanish)
Red de drenaje