查询词典 saddle bracket

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。

You'll be in a different tax bracket.

就会有不同的税收负担。

It is unfair to bracket together those who cannot work with those who will not.

把不能工作的人和不愿工作的人等同看待是不公平的。

He doesn't have to worry about going into a higher tax bracket.

他不担心进入一个更高的税率。

I would have to say that is an 'L'-shaped bracket.

我不得不说，这是一个"L"状的支架。

Don't bracket him and his brother: they are quite different.

不要把他和他兄弟相提并论，他们完全不同。

I would have to say that is an L-shaped bracket.

我认为那应该是个L型支架

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。