Work vehicle, and position adjustment method of movable portion of work vehicle
Water supply and distribution system, method for operating same, and aircraft
Water floating air film automatic gas supply pressure relief device
Water-accumulation-preventing efficient ecological protection slope for water and soil conservation
UTILITY VEHICLE, AND METHOD FOR ADJUSTING POSITION OF MOVABLE PART OF UTILITY VEHICLE
TRAGSCHRAUBER UND GEEIGNETER START- UND LANDEPLATZ FÜR DENSELBEN
Traction type multifunctional flood prevention emergency equipment vehicle