求翻译：喷孔堵塞。可用通针进行疏通，疏通后要经纬仔细地清洗。针阀体大平面与喷油嘴主体平面接触不良，或针阀圆柱面磨损较大。若针阀体大平面与喷油嘴主体平面接触不良，可用氧化铬涂在平板上进行“8”字形研磨；若针阀圆柱面磨损较大，应成对更换针阀偶件。是什么意思？

Nozzle clogging. Available through the needle to clear the dredge to latitude and longitude careful washing. Plane with the fuel injector main body of the needle valve body plane poor contact or needle valve cylinder surface wear larger. Plane with the fuel injector main body of the needle valve bod

clogged vent. Available through pin to dredge, and unclog carefully to Ross after cleaning. Needle valve body with large flat plane injector body contact, or needle valve cylinder is worn. If needle valve body with large flat screen INJECTOR BODY plane available, contact the oxidised chrome-vanadium