Furthermore, the paper introduces the mechanism of applying nozzle airflow purging technology to prevent accumulating dust in wind fan blades and its using effectiveness.

针对锅炉引风机频繁积灰振动问题，分析了引起吸风机积灰振动的主要因素，并介绍了应用喷嘴气流吹扫技术防止引风机叶片积灰的机理及其使用效果。

youdao

The wind has blown in the dust.

风把灰尘吹了进来。

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Massive fans at many mines make it feel like you are standing in a wind tunnel. Coating the walls with limestone also can dampen the effects of coal dust.

许多矿井都设有大型风扇，运转起来，就好像你站在的大风口处，此外，在墙上覆盖一层石灰石也能降低煤渣效应带来的危害。

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That hey-what-the-hell casualness extends to Tweedy, whose tendency to start each of his singer-songwriter meditations with the same "Dust in the Wind" chord progression is almost confrontationally laid back.

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