High pressure cleaning vehicle was a type of specialty vehicle for road surface cleaning, maintenance and environmental protection.

高压清洗车是城市路面清洁、路面维护和防治环境污染的专用车辆。

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After cleaning, the vehicle road test to determine the engine in the course of no abnormal noise.

清理完毕后，进行车辆路试，以确定发动机在行驶过程中无异常噪音。

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