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.

youdao

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.

youdao