Spouted bed is an efficient reactor for handling the coarse particle materials.

喷动床是处理粗颗粒物料的高效反应器。

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The experimental data of gas flow rate in the bed with four slant angles and three kinds of particle materials are obtained.

选用三种颗料状物料，在四种不同倾斜度的斜管中测定了不同负压差和固体流率条件下的气体流率。

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The results show that materials with a single olivine structure, rules of the sample morphology and particle uniformity.

结果表明，该方法制得的材料具有单一的橄榄石结构，样品形貌规则、颗粒均匀。

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Femtosecond lasers can also be used to interact with other materials and generate particle beams for experiments, says Karl Krushelnick, of the University of Michigan.

ECONOMIST: Ultra-fast lasers

As you're swiping your boarding pass ( or smartphone), the machine also scans it for particle-sized traces of explosive materials and sends the all-clear or no-go in less than two seconds.

ENGADGET: Hitachi boarding gate can sniff explosives on passes, keep the transport queues flowing (video)