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Hydrogen bonding in hard segment domains of segmented polyester polyurethaneurea based on 4,4'-diphenylmethane diisocyanate, ethylene diamine and polybutylene adipate(M. W. 1975 and M. W. 1228) was studied by means of IR spectroscopy.

用红外光谱法对基於4，4'-二苯基甲烷二异氰酸酯、乙二胺和聚己二酸丁二醇酯（分子量分别为1975和1228）的两系列嵌段聚酯型聚脲氨酯硬段微区中的氢键化进行了研究。

A series of thermoplastic polyurethane elastomers with different fraction of hard segments based on poly (ethylene-propylene adipate)/ethylene oxide/tetrahydrofurancopolyether as soft segments were synthesized.

合成了以PET/PEPA为软段的不同硬段含量的热塑性聚氨酯弹性体，利用凝胶渗透色谱、傅立叶变换红外对其进行了表征，并测试了其力学性能。

So your adolescent life was very hard,right?

所以你的青春时代是很辛苦的。

Paperboard paperboard mounted framed print framed and legislation can be divided into surface mount, flat mount all of the paper-cut transparent latex adhesive designed hard copy in advance can on top.

纸版装裱纸版装裱可分平面装裱和立面装裱，平面装裱将剪纸用透明乳胶全部粘连在事先设计好的纸版上即可。

For the most part, hard work and exercise in one's teens can definitely forge him into generalists, even be left in atmosphere full of adventive language, but all these remain undo.

更重要的是，由于他们在学习上没有打好坚实的基础，不能适应外语环境下的学习。

In this case, the amount of hard phases can be raised advisably higher.

同时 ，该材料在使用过程中对硬质点的分布和数量也有一定的要求[2 ，3] 。

China has made some progress in understanding and combating the process of aeolian desertification through many years of hard work.

通过对沙漠化发展和逆转过程的研究，特别是基于多年来我国沙漠化治理的成果，文章就防治沙漠化的战略和途径进行了进步的探讨。

The hard disk AEOLUS radiator should be the cheapest one available in the market, the model FS-HD01, the use of a single fan and the plastic air duct design, the design of such a simple and effective for little silver friend.

这款九州风神的硬盘散热器应该是市面上最便宜的一款了，型号为 FS-HD01，采用了单风扇和塑料风道的设计，这样的设计简单而有效，适合银子不多的朋友。

The Teflon cones used for reentry aerophysics property research are made by sheath structure, the ballast core is made from tungsten and hard aluminum. Two structures and two materials are used for the design of sabot of Teflon cone.

对用于再入物理特性研究的泰氟隆锥模型，采用了钨、铝作芯体配重的鞘套结构，而弹托采用了四瓣不封底和八瓣全包覆两种结构并选用了聚碳酸酯和超韧尼龙两种材料。

He's affable, a good teammate, and works hard every second he's on the floor.

就像我们上赛季在雪城看到的一样，他能够胜任大比赛的最后时刻的任务。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。