查询词典 ladderlike

This dissertation aims to: improvement in regularity of ladderlike polysiloxane through strong H-bonding template and"half-water-hydrolysis"methods; synthesis of several functional polysilsequioxane with ethoxyl, hydro and aminopropyl groups respectively; and the preparation of nanoporous film with good mechanic properties from ladderlike functional polysilsesquioxane with intermolecular porogen via micro-phase separation process.

本论文旨在利用强氢键模板作用和"半水水解-脱氯化氢缩聚"的改进方法，提高反应性的梯形聚硅氧烷的规整度；合成乙氧基封端、含氢基和氨丙基的几种功能性梯形聚硅氧烷；以及探索利用含分子内成孔剂的梯形聚倍半硅氧烷通过微相分离制备低介电常数二氧化硅纳米微孔膜。

Scalariform thickening A type of secondary wall formation consisting of interlaced helical bands of thickening giving a ladderlike formation. It allows for very little further extension, and is found in tissues such as metaxylem tracheids and vessels, which do not elongate after maturation.

梯纹加厚：是植物细胞次生壁的一种形态结构，壁由加厚过程中相互交错成梯状形态的螺旋带形成，其可延伸性很小，多存在于后生木质部管胞和导管等一些成熟后便不再延伸的管状分子中。

At last, the difficulties of research on ladderlike polysiloxane are mentioned, and the development prospect is looked forward.

最后提出几个梯形聚硅氧烷液晶研究工作面临的问题，并对梯形聚硅氧烷液晶的发展前景作了展望。

The multinational operation of medium and small enterprises plays an important role in the course of rapid upgrading of international industries, ladderlike shifting of traditional technique and world economic integration.

在国际产业快速升级、传统技术梯度转移和世界经济一体化的进程中，中小企业的跨国经营起着不可忽视的作用。

The synthesis of reactive ladderlike polysiloxane is one of the most challenging tasks, from which a series of novel functional ladderlike polysiloxane can be prepared.

而合成具有反应性的梯形聚硅氧烷更是一个重要的前沿课题，可以进一步衍生出一系列新型的梯形主链的功能高分子。

The rest positions of 〓 unit are occupied by water and an oxygen atom of carboxylates from another type of ligand. With two carboxylates of this type of ligand, two ladderlike long chains are connected to form one-dimensional ladderlike chain structure.

第二类配体中每个羧酸根的一个氧原子与水分子饱和四面体结构单元余下的位置，并连接两个梯形长链形成一维梯形链状聚合物。

Synthesis and chracterization of high ordered Ladderlike Polysilsesquioxane Since Brown first reported the synthesis of ladderlike polyphenylsilsesquioxane via "thermal equilibration polymerization"in 1960, it is still a question whether ordered ladderlike polysilsesquioxane can be prepared or not all over the world till now.

第一部分高规整性梯型聚硅氧烷的合成1960 年Brown 首次报道了用&热平衡缩聚法&合成含梯形结构的聚苯基倍半硅氧烷，但该报道受到许多研究者的质疑。至今40 多年来对能否合成真正规整梯形结构的聚倍半硅氧烷一直存在着争议。

Absrtact: The authors Investigated and analyzed present situation of reserves ladderlike of professional clubs of the China. The result shows that it will become main ways to cultivation reserve ladderlike of professional club in China because it is better than traditional training of sports system on quali fication of y oung player. And it has succeeded to train the basketball y oung players being excellent players. But there are s ome shortage that the club manager can' t attach importance to learn the culture for y oung players and coach need improve abilities of scienti fic training.

摘 要：通过对我国职业篮球俱乐部后备队伍现状的调查与分析，表明职业篮球俱乐部在培养后备人才的条件上，相对于传统的培养渠道而言占有优势，这将成为我国职业篮球运动后备人才培养和输送的主要途径；其后备队伍在为培养和输送优秀篮球运动员上已获成效；存在的不足是俱乐部对运动员的文化学习不够重视，教练员的科学化训练能力有待提高。

Then according to the different ways of mesogenic units connecting to the ladderlike main-chain, the ladderlike polysiloxane liquid crystals are classified into fishbonelike and canoelike polysiloxane liquid crystals.

介绍了梯形聚硅氧烷液晶的结构特点，根据液晶基元接枝到梯形高分子主链上的方式，将梯形聚硅氧烷液晶分为鱼骨形和划艇形两种。

Methyltrichlorosilicane and phenyltrichlorosilicane are applied for the synthesization of the ladderlike polymethylsilsesquioxane and ladderlike polyphenylsilsesquioxane.

选用甲基三氯硅烷和苯基三氯硅烷为主要原料合成了梯形聚甲基倍半硅氧烷和梯形聚苯基倍半硅氧烷。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。