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The results showed that difunctional POSS with clear structure could be prepared by this method with a high yield.A new,simple and feasible route to design and synthesize difunctional POSS was proposed.

结果表明通过此合成路线可得到高产率的结构清晰的双官能POSS，并提出了合成双官能POSS的新方案。

In this paper ,in order to solve the brittleness,the synthesize and technics of phenolic resin were studied .

本文针对酚醛树脂泡沫增韧这一问题，通过对树脂的合成研究、工艺控制，以及发泡配方和工艺的探讨，初步得到了一种较好的树脂合成工艺条件和韧性增强的酚醛泡沫塑料。

And our work is to synthesize the expandable graphite which has greater volume and lower sulfur content, with organic regent substituting for oil of vitriol and with some oxidants using to meet the need of the industry manufacture, to study the catalysis capability of the product.

我们的工作是改用有机介质逐步替换浓硫酸，在某些氧化剂的作用下制备出大膨胀体积，低硫含量的可膨胀石墨产品，使其符合工业生产需要，并对其催化性能进行初步研究。

ABSTRACT This thesis mainly aims to build a F0 contour modal for parameter synthesis of Mandarin, which can be used to synthesize monosyllables, disyllables and trisyllables more naturally.

本文的研究工作致力于探索一种供参数合成法使用的，能够提供接近自然语言的汉语单音节、两音节组和三音节组的基频曲线建模方法。

Based on the reactive distillation technology, the as-prepared nanostructured manganese oxides are also used to catalyze the esterification reaction between acetic acid and isoamyl alcohol to synthesize isoamyl acetate.

动力学研究表明本实验的催化氧化反应遵循动力学规律r(来源：ABC70a8论文网www.abclunwen.com)_A=333.3×c_A~(1.76)。以所制备的纳米结构锰氧化物为催化剂，采用反应蒸馏技术进行了乙酸异戊酯的合成研究。

Cartilage cells which are the only adult hyaline cartilage cells synthesize and secrete high specifical cartilage matrix.

关节软骨是一种特殊的结缔组织，覆盖在关节的负重面上，由软骨细胞及细胞外基质所构成，软骨细胞是成人透明软骨的惟一细胞，它合成与分泌高特异性的软骨基质。

In the second part, we synthesize azasugars and explore some reactions of saccharides in I2/NH3 aqueous solution.

在第二部份、我们已经成功的合成氮醣化合物的骨架及发展出一些醣类分子在水相中的反应。

To study and synthesize new surfactants which have high surface activity has always beenan interesting task of people.

探索并合成具有高表面活性的新型表面活性剂一直是人们感兴趣的课题。

Methods:By use of Leuckart reaction to synthesize the above mentioned compound for the first time and reaction conditions were studied.

采用柳卡尔特反应合成，并对反应条件进行探讨。

Methods:By use of Leuckart reaction to synthesize the above mentioned compound for the first time and reaction conditions were studied.

柳卡尔特氨化反应，虽有100多年的历史，但作为有效合成胺类化合物及机制，直到最近几年来才得到广泛的研究和应用[2～4]。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷