Metal nanoparticles are the subject of intensive research efforts across the world, due to the differences in the optical properties they exhibit compared to bulk metals.

由于金属纳米粒子与整体金属相比所表现出来的光学特性差异，使其成为全世界深入研究的目标。

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The major items coming in by river are bulk cargo: liquid and solid fuels, metals and machines, grain and animal feeds.

河运进口的大宗货物主要是：液体及固体燃料，金属和机器，谷物和动物饲料。

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Deformation mechanisms in bulk nanocrystalline metals are also discussed.

并简要分析了纳米晶金属的形变机制。

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The firm, which concentrates on trading oil, metals, ores and bulk commodities, may in the future consider floating Puma Energy, its rapidly expanding fuel station business.

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Both metals and plastics are traded in bulk form, before they are turned into finished products.

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Already, most of the shipments through Murmansk's Barents Sea port to the north or Kandalaksha's White Sea port to the south is made up of metals and minerals, and the bulk is set to grow.

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