查询词典 bracket joint

Ringel realized positive parts of semisimple Lie algebras in the framework of Ringel-Hall algebras. The main result of this thesis is to build a geometric and topological model over triangulated categories such as derived categories and stable module categories of repetitive algebras. We defines a Lie bracket by Euler characteristics of constructible subsets and thus realizes infinite dimensional Lie algebras of various types with non-degenerated bilinear form.

本文的主要结果是在导出范畴和重复代数的稳定模范畴等三角范畴水平上建立相应的几何-拓扑模型，并利用相应可构集的欧拉示性数定义了一个Hall代数的交换子乘法，从而在三角范畴水平上实现了一大类无限维李代数的整体构造，并且这类李代数本质上都具有非退化的不变双线性型。

The piece is of shaped oval bombe form with chrysanthemum decorated rollover rim, four chrysanthemum capped bracket feet, two chrysanthemum capped handles, the detachable domed lid with chrysanthemum border and chrysanthemum capped handle.

在一块椭圆形的菊花装饰的过渡边缘bombe形式，四菊花覆盖支架脚，两个菊花上限处理，对边境和可拆卸的菊花菊花上限处理圆顶盖。

None of these has any solid basis , unless the pieces of bracket fungus he was carrying had medicinal or spiritual use for a shaman.

巫师假说还算有一些根据（兹携带的树菇或可以做为药物，或者可用来通灵）此外，没一个有坚实的基础。

And bracket. The operation priority increases from '+' to '!'.

及支架。行动中优先增加，从'+'，以'！'。

Objective To develop and apply portable bracket of lower limb in operation of tibia interlocking intramedullary nail.

目的：针对胫骨交锁髓内钉内固定术操作中存在的问题，研制出便携式下肢手术支架并应用于该手术操作中。

Entcroscopic colon bracket insertion operation has profound clinic value, either for palliative treatment, or for surgery preparation.

肠镜下置入支架在治疗左半结肠癌性梗阻中有临床应用价值，既可作为姑息疗法，也可作为术前准备的一部分。

Without using Lie derivative and Lie bracket operation of differential geometry , we only use the algebra method to give a sufficient condition of single input exact feedback linearizable bilinear systems.

摘 要 研究了单输入的双线性系统的精确线性化及其鲁棒控制器设计问题，避免了用微分几何的李导数、李括号的复杂运算，只用纯代数的方法给出了一般单输入双线性系统精确线性化的充分条件。

In recent years, through conducting market research and investigations, having interviews with customers to get acquainted to the market demands, by conducting all-round technical renovation, adopting new technology and new process to existing products, the company has developed and manufactured Series JC Electric Multi-purpose Operation Table and Series JCY Hydraulic Operation Table for Type C arm equipment, Type-JQ Multi-purpose Intermission Traction Bed, JC-CQ Bone Traction Frame and Backbone Operation Bracket, further satisfying the demands of the customers.

近年来公司通过市场调研、走访客户及市场发展的需求，我们对原有产品进行了全面技术更新，充分应用新技术、新工艺开发生产了为C型臂配套的综合电动手术台JC系列和电动液压手术台JCY系列；JC-JQ多功能间歇牵引床系列； JC-GQ骨科牵引架系列以及脊柱架。更进一步满足了用户的需求。

Let R be an arbitrary commutative ring with identity, gl the general linear lie algebra over R consisting of all n × n matricesover R and with the bracket operation = xy -yx, t the lie subalgebraof gl consisting of all n×n upper triangular (resp., strictly upper triangular ) matrices over R and d the lie subalgebra of gl consisting of all n×n diagonal matrices over R.

在第三章中，对R是交换环的情形，讨论了典型李代数的导子代数的结构问题：设R是一个含幺交换环，gl是R上一般线性李代数。t是gl的所有n阶上三角矩阵(相应地，严格上三角矩阵)构成的子代数，d是gl的所有n阶对角阵构成的李代数。

This product is aimed at people in the 24 to 54 age bracket.

这种产品是以24至54岁之间的人为目标。

When I started coding, I had problems with the ASF file writer.

当我开始编码，我曾与ASF文件作家的问题。

I know that in one of the schools the boys have risen up in the classroom and enlisted in a mass.

如果你们也和他们一样，是集体自愿的话，你们的老师将是多么地光荣啊。