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structure of melt 熔体结构

  • Milk, liver, peanuts and eggs also are naturally rich in choline, and studies have shown that it seems to play a role in metabolism, cell structure to the workings of brain neurotransmitters.

    MSN: Some so-called 'dude foods' may not be so bad

  • The other, which faces a specialised type of solar cell made of a material called indium gallium arsenide, is sculpted into a structure called a photonic crystal that causes it to emit infra-red radiation selectively at the frequency best absorbed by the cell.

    ECONOMIST: Solar power

  • At this stage the structure, though still just a featureless ball of cells, has started to differentiate into the body's three basic cell types (known as endoderm, mesoderm and ectoderm).

    ECONOMIST: An embryonic development

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