用屏幕检验法检测前照灯的光束位置时，应将汽车停在距屏幕处（ ）m的水平地面上，并且按规定充足轮胎气压，从车上卸下所有负载（只允许一名驾驶员乘座）。 When detecting the beam position of headlamp by screen inspection method, the car should be parked on the horizontal ground () m from the screen, and the tire pressure should be sufficient to unload all loads from the car (only one driver is allowed to take a seat).