假如车辆常常行进于尘埃较多、空气质量较差的路况区域，就应当留意清洁进气管道，确保进气的疏通。
If the vehicle is often moving in the dust more, poor air quality road areas, it should pay attention to clean the intake pipe, to ensure that the air intake.
发动机的进气系统主要由空气滤芯和进气管道两部分构成。
The air intake system of the engine is mainly composed of two parts: the air filter element and the intake pipe.
或不用抽气机，而在进气管道有一接高压清洁空气的进气口(4)。
Otherwise, the air exhauster is not necessary, and the air inlet (4) connecting with the high-pressure clean air is arranged in the air inlet pipeline.
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