梯形

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。

The preliminary results show that the peak of HSiO〓 with the baseline width of about 4ppm in 〓Si-NMR spectrum is getting narrower, which shows that the regularity of the ladderlike polymer is further improved.

初步结果发现〓Si-NMR谱中代表梯形主链上Si原子峰的基线宽度降低到4ppm，表明梯形聚氢基倍半硅氧烷的规整性有进一步提高。

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。

Furthermore,H-T is the first soluble,reactive and purely inorganic ladderlike macromolecule,which can be grafted through hydrosilylation reaction and others to generate functional LPSs with different side groups.

而且，该聚合物又是第一个可溶性、反应性、纯梯形主链无机高分子，它可以进一步通过硅氢侧基接枝反应制备不同类型的梯形无机主链功能高分子。

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。

The peripteral temple at Ephesus was the earliest example of a peripteral type on the coast of Asia Minor, and perhaps the earliest Greek temple surrounded by colonnades.

其实， paradeisos一字直译应译作「梯形高台」，所谓「空中花园」实际上就是建筑在「梯形高台」上的花园。希腊文paradeisos后来蜕变为英文paradise。

Paths would be rasterized by cracking them into trapezoids as described above, using a settable error value to describe the polygonalization of curves.

把&路径&分解成上面描述的梯形，并使用一错误值变量来跟踪曲线的梯形分解过程。

By this constraint, the inner parameters, motion parameters of the cameras and the similarity invariants of trapezia can be linearly determined using some prior knowledge on the cameras or the trapezia.

基于这个约束关系，利用摄像机内参数的知识或梯形相似不变量的知识，可以线性确定摄像机的内参数、运动参数和梯形的相似不变量。

This paper introduces an affine invariant of trapezia, and the explicit constraint equation between the intrinsic matrix of a camera and the similarity invariants of a trapezium are established using the affine invariant.

引入了梯形的一个仿射不变量，并利用这个不变量，建立了梯形的相似不变量与摄像机内参数之间的约束关系。

To eliminate abnormity wear of tires in double-front-axle system of heavy truck, the kinematics and dynamics analysis method is set forth. On the base of the results for heavy double-front-axle truck load distributing and manipulate stability, tire uniformity load condition and deficiency steering characteristic condition of heavy double-front-axle truck are put forward. Steering trapezia space movement formula, double-swing-arm space movement formula and double-swing-arm movement formula in actual status of heavy double-front-axle truck are fetched. Optimization models of steering trapezia and double-swing-arm are founded and optimization arithmetics of transmission system in double-front-axle steering are compiled.

本文以消除重型汽车双前桥转向系统轮胎异常磨损等为目的，阐述了双前桥转向系统的运动学、动力学分析方法；在分析了双前桥重型汽车载荷分布和操纵稳定性的基础上，提出了双前桥重型汽车轮胎均载应该满足的条件、双前桥重型汽车具备不足转向特性应该满足的条件；推导了双前桥转向梯形空间运动关系式、双摇臂机构空间运动关系式和双前桥汽车实际工况下的运动关系式，建立了转向梯形和双摇臂机构优化设计模型，编制了双前桥转向传动系统优化算法。

In her eyes, because that is the doorway toher heart * the place where love resides.

女人的漂亮必須從她的眼睛中去看，因為那是她心靈的窗戶和愛居住的地方

I will send some postcards to you.

我会向你发送一些明信片。