Three dimensional hydrogen bonding in hard segment domains can be formed by further bonding of the above planar hydrogen bondings.

认为这些平面氢键可以通过进一步键合来形成硬段微区中的三维氢键。

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It was found that there existed some interaction between the hard segment of polyurethane and polyacrylonitrile in this polymer blend system.

发现在该共混体系中，聚氨酯硬段与聚丙烯腈之间存在一定程度的相互作用。

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Glass transition temperature goes up with the hard segment content increase. Heat history affect on glass transition of polymers apparently.

受热史对聚合物的玻璃化温度有较大的影响，随着硬段含量的增加而变大。

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Stryker is also a major provider of medical and surgical supplies, and its MedSurge segment got socked particularly hard last year as hard-pressed hospitals and other health care providers trimmed their spending.

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Focusing on a single market segment may require you to swallow hard if your opening bid for mass-market appeal went thud.

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