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4 公路及城市道路夏、冬季养护机械在公路夏季运营时,为了清除路面灰尘与脏物,广泛地采用了洒水清洗车与清扫车.洒水清洗车上装有水罐、离心泵、带可调式路面冲洗喷头的水流落差式压力管,以及充水装置.容积为3000～4000L 的水罐一般装在汽车底盘上,而容积为1000～1500L的水罐装可在轮式拖拉机牵引的单轴挂车上.清扫车用于街道排水沟与路面的清扫、垃圾收集运出以及在垃圾场上机械化卸载.
4 Roads and Urban Roads Summer and winter maintenance machines are widely used to clean the road surface dust and dirt while running the road in summer. Watering and cleaning vehicles are equipped with jerry cans, centrifugal pumps and adjustable pavements Flush nozzle flow drop pressure pipe, and water-filled devices. Volume 3000 ~ 4000L of the water tank is generally mounted on the chassis of the vehicle, and the volume of 1000 ~ 1500L water tank installed in the wheeled tractor-towed single-axle trailer Sweeping vehicles are used for cleaning of street drains and pavements, garbage collection and removal, and mechanized unloading on landfills.