Metal dust fires have the potential to radiate more heat and some metals burn at extremely high temperatures in comparison to other combustible materials.

金属粉尘的燃烧产生更多的热和辐射，有些金属粉尘的燃烧火焰的温度非常高，远高于其他可燃物质。

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Everything was covered in that white dust, with giant pieces of metal lying around, and the buildings crushed beneath it.

所有的一切都笼罩在白色的烟尘中，巨大的金属碎片横躺在身边，建筑倒塌在上面。

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It's usually insulated by a thick layer of rubber, but if the wire is frayed, damaged, or loosened, it can expose electrically "hot" metal to the tangle of cables and dust behind your equipment.

通常电源线外面都包裹一层厚厚的橡胶。若一旦这层橡胶磨损、损坏或者松脱了，那么里层金属可就和电器后面那些线缆以及灰尘通上电了。

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The heavy metal enters the body when children breathe the paint dust or fumes in the air.

VOA: special.2009.08.31

The inevitable bumps and scrapes as gold bars are moved around mean dust and slivers of the metal which are sucked up and recycled.

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Indium is leached from slag and dust of zinc production and the metal further purified by electrolysis.

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There's an important distinction between these two types of objects: Comets are mostly water, ice and dust, while asteroids are mostly rock or metal.

CNN: While you were working: An asteroid just flew by