Mine ventilation frequency wet dust removal system for the heading face of coal mine dust in air.

矿用通风湿式变频除尘系统，用于对煤矿井下掘进工作面的空气进行除尘。

youdao

Methods dust concentration of mine area and the levels of lipid peroxidation of workers exposed to coal mine dust were studied.

方法检测煤矿粉尘接触量和人群脂质过氧化水平。

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Objective To monitor coal mine dust concentration and composition, study the incidence of coal worker's pneumoconiosis, and provide a scientific basis for pneumoconiosis control.

目的监测煤矿井下粉尘浓度及组成成分，研究其与煤工尘肺的发病关系，为尘肺病防制提供科学依据。

youdao

The explosion is similar to blasts that have occurred in industries, such as in a coal mine when coal dust in the air ignites and explodes.

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Enveloped in a smog of coal dust that softens the sunlight into a hazy glow is the An Tai Bao surface coal mine.

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