It improves dust effect and working environment. It provides assure for explosion proof coal dust.

极大地改善工作面的灭尘效果，改善劳动环境，为防。

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The roughing technology of a magnesia and carbon brick shop, the carrying condition of the dust control system and the dust effect is introduced in this paper.

介绍了某耐火镁碳砖车间粗碎工艺、除尘系统的运行状况及除尘效果。并提出了改进建议。

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Although its visual effect is so pronounced, dust is only a minor constituent of the material, extremely low in density, that lies between the stars.

尽管它的视觉效果如此显著，但尘埃只是位于恒星之间的物质的一个次要组成部分，其密度极低。

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They will now be able to track the effect of atmospheric dust, which has a little-understood but potentially far-reaching effect on everything from Florida's weather to the health of its coral reefs.

ECONOMIST: Bad air from Cuba

He said the ash was mostly made up of dust which causes the irritating effect but it also contains 4% silica.

BBC: Mount St Helens spews out steam and ash on 5 October 2004

They also conclude that greenhouse warming has partially been offset by the cooling effect of aerosols - tiny particles of dust thrown into the atmosphere that can reflect solar radiation back into space.

BBC: Climate research bolsters 'action' call to UN talks