空滤器进气管
Air filter intake pipe
以上为机器翻译结果，长、整句建议使用 人工翻译 。
得到D9-220柴油机进气系统和空滤器的最大阻力限值，为进气管路的设计和空滤器的选择提供了依据。
The maximum resistance allowances of the intake system and air filter are gained for the D9-220 engine. This provides a basis for the intake line design and the air filter selection of the engine.
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