ditch drain

drain ditch in the field

interception drain ditch

weeper drain；weep drain；drainage ditch；drain ditch

drain castinghollow casting drain tile

Double channel ditch (W-type ditch)

‘zero’ drain

acid drain cleaners

active drain hold-up tank

active drain tank

active-effluent drain pipe

actuator oil drain

aft water drain mast

after drain line

aftercooler air chamber drain

aftercooler drain

agricultural drain

agricultural drain pipe

air drain