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At last, the mechanical properties of 3-D braiding composites are studied in this paper.

最后本文对减纱前后三维整体编织复合材料的拉伸性能进行研究。

Firstly, XRD, TEM and FT-IR were used to characterize the structure of CNTs treated by dense HC1, dense HNO_3, HNO_3, H_2SO_4-HNO_3, K_2Cr_2O_7-H_2SO_4 and bromic acid. The results showed that purification treatment had no change on the structure of CNTs. But on the top of CNTs have function group such as -OH and -COOH after H_2SO_4-HNO_3 and K_2Cr_2O_7-H_2SO_4 were treated.

采用浓HCl、浓HNO_3、H_2SO_4-HNO_3、K_2Cr_2O_7-H_2SO_4、溴水共5组物质分别对CNTs进行纯化处理;借助XRD、TEM、FT-IR等分析手段对处理前后CNTs结构及形貌进行表征,发现以上5种物质纯化处理并不会对CNTs结构造成很大影响,其中H_2SO_4-HNO_3和K_2Cr_2O_7-H_2SO_4处理效果较好,除杂的同时CNTs端口带上-OH或-COOH活性官能团。

Objective To investigate the changes of the levels of serum NO/NOS and TNF after treatment in patients with children broncho pneumonia.

目的探讨小儿支气管肺炎治疗前后血清NO/NOS和TNF-2水平的变化。

Objective To study the clinical significance of changes of serum IGF-Ⅱ, IL-6 levels after treatment in patients with child bronchopneumonia.

目的:探讨支气管肺炎患儿治疗前后血清IGF-Ⅱ、IL-6水平的变化及临床意义。

objective:to study emotion disorder in patients before and after bronchoscopy and to investigate the effect of mental intervention.

目的:了解纤支镜检查前后患者的情绪障碍和心理干预效果。

The experimental results demonstrated that the number of strychnine and brucine all declined in combined Strychnos nux-vomical L.

采用电喷雾质谱技术和高效液相色谱法分别对马钱子配伍甘草前后主要生物碱的变化规律进行了系统研究。

One tablespoonful of honey will attract friend Bruin more than half a dozen barrels of first choice malt vinegar.

他那鹦鹉的黄嘴用鼻音急促不清他说着)犹太历五五五0 年前后,喀尔巴阡山脉有过一句谚语。

When we got home, before, and after I brushed my teeth.

但当我们到家,在我刷牙的前后

Portuguese bullfighting is a very popular form of entertainment, are held annually around New Year's Day bullfighting performances.

斗牛是葡萄牙人十分喜爱的一种娱乐活动,每年元旦前后都要举行斗牛表演。

Some of us must find our place by trial and error.

在剩下的两个选项中作出选择时,我们必须前后兼顾。

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年美国个人破产法的一个改动使得破产登记急速下降,而后引起了信用卡大规模的亏损。

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