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The results indicated that the composite films exhibited much improved gas sensing performance.The phthalocyanine and its a-Fe2O3 embedded nano-particulate LB filmswere prepared by Langmuir-Blodgett technique. The films were characterized by AFM, UV-Vis and FT-IR spectra. The results indicated that the embedded LB films were composed of a-Fe2O3 nanoparticles and isopropoxyphthalocyanine molecules. The gas sensitivity of such prepared composite LB films was greatly improved. The film could detect 5ppm of propyl alcohol at room temperature. The composite films could be considered as gas-sensors for alcohols.

利用LB技术制各了异丙氧基酞菁铜LB膜和酞菁铜包埋球形α-Fe_2O_3纳米粒子的杂化LB薄膜，对其AFM、紫外和红外光谱的研究表明，利用LB技术可以实现酞菁与α-Fe_2O_3纳米粒子的有序组装，而且杂化薄膜对醇类气体的灵敏度有较大幅度提高，如对浓度为5ppm正丙醇的灵敏度为3.85，因此，杂化薄膜可以作为室温下醇类气体传感器进行开发研究。

A sol containing SiO_2 particles was prepared by the base catalyzed hydrolysis and polycondensation of tetraethoxysilane through sol-gel process. A solution containing double-chain polymer of methyltriethoxysilane was also prepared under acid condition, as the introducer of water repellence.

通过溶胶-凝胶法，在碱性条件下水解缩聚正硅酸乙酯获得含有SiO2颗粒的溶胶；以甲基三乙氧基硅烷在酸性条件下水解缩聚获得双链聚合物溶液，作为疏水基团的引入剂。

Ruthenium catalysts prepared by the new method possess larger surface area than that prepared by the traditional method.

结果表明，Ru负载在采用新方法成型的载体上制得的催化剂具有更大的比表面积。

These coatings have been characterized by the state-of-the-art techniques of XRD, nano-indentation, scratch test, SEM, RBS, etc. As the result, it was found that TiN coatings prepared by -100V DC bias are characterized with the (111) preferred orientation and the coatings prepared by pulsed bias with (111),(200) and (220) hybrid orientations.

通过XRD、纳米压痕仪、划痕仪以及SEM、RBS等手段对薄膜的结构和性能进行了测量和分析，结果发现，-100V直流偏压下TiN薄膜有明显的(111)晶面择优取向，而脉冲偏压条件下TiN薄膜为(111)、(200)、(220)混合晶体取向。

I was prepared for wakeful nights,endless diapers,sore nipples,crying,and the feeling that I can't get anything done.I was prepared for sitz bath and hemorrhoids.

我已经为不眠之夜，没完没了的尿布，疼痛的乳头，哭声，什么都做不成的失落，甚至坐浴疗法和痔疮做好了准备。

Seven derivatives of 1,3- dithiocyclohexane were prepared via the reaction o f 7 aldehydes with Bunte′s salt prepared from 1,3-dichloroprop ane and sodium thiosulfate.

国内外关于 1， 3 二硫环己烷类化合物的合成已有大量报道 [5~8]，但反应条件较苛刻，一般都在-18~78℃之间，而且一种方法只能合成一种物质。

The catalytic performance of MDA on a Mo/HZSM-5 catalyst derived from the HZSM-5 zeolite prepared from soluble glass is better than that derived from the HZSM-5 zeolite prepared from silicon gel.

由水玻璃合成的HZSM-5分子筛制得的Mo基催化剂，其甲烷无氧芳构化性能优于由硅溶胶合成的HZSM-5分子筛制得的Mo基催化剂。

Refractory mortar shall be temporarily prepared before being used while mortar added with soluble glass and cement shall be prepared within one hour before being used, moreover, mortar shall not be used once it agglomerates.

耐火泥应在使用前临时调制，加有水玻璃及水泥的泥浆应使用前一小时内调制，泥浆结块后不能使用。

Mitchell Stephens: I did not have to go as far as I was prepared to go, but I was prepared to go all the way.

Mitchell Stephens：我并没有打算按照原来设想的一样走那么远，但是我已经准备好了走完全程。

Writing some events about family busy morning, alarm clock was still working and Carrie got up, then we did morning job and prepared to go out, mom helped Carrie comb her hair, I prepared milk, eggs and oranges. Those are our breakfast.

写些早上的事情吧，莘莘在闹钟响后起床了，然后就是洗脸刷牙啦什么的，妈妈给莘莘梳好的头发，我则准备早餐，有牛奶，鸡蛋和桔子。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。