交换

In Chapter 3,we investigate the boundedness results for some higher order commu-tators on MK_~.

第三章给出了高阶交换子在MK_~上的有界性结果。

At 275 ℃ the reaction rate of PET/PEN blends with BOZ is higher than that of the blends without BOZ and the activation energy reduces from 167.8KJ/mol to 94.0 KJ/mol.

在275oC下，加有 BOZ的体系具有比不加 BOZ体系高的酷交换反应速率；

Letty came to me to clear your name in exchange for bringing down Braga.

莱蒂来找我要以为布拉加运货来交换把你的名字从名单上除去。

The braid group is infinite non-commutative group, and it has many hard problems that can be utilized to design cryptographic primitives, such as the word problem, conjugacy problem and root problem.

辫群是一种非交换的无限群，该群中有许多困难问题是不可解的，如字问题、共轭问题和根问题等，利用这些困难问题可以去设计一些密码协议。

We describe the algebraic characteristic of the public-key cryptosystems based on algebraic structures such as elliptic curves,bilinear pairings,as well as braid group s,with the emphasis on the difficulties of constructing public-key cryptosystems based on non-commutative algebraic structures.

通过分析基于椭圆曲线、双线性对以及基于辫子群的公钥密码体制的代数学特征，着重讨论了构建基于非交换代数的公钥密码体制所面临的困难。

Larval fish can exchange ions through their skin, and early fish likely used rudimentary gill structures known as branchial baskets.

鱼苗能通过皮肤进行离子交换，而早期的鱼使用原始的鱼鳍结构——气管鳃篓。

If the packet destination address is not in the bridge table, the packet is flooded on all forwarding interfaces in the bridge group.

对于可路由的接口和交换虚接口，IP地址的分配不是必须的。

This broadcast storm will include Switches X and Y, and beyond.

这广播风暴也会影响到X和Y和之后的交换器。

The paper discusses and analyzes the mechanism and countermeasure of the broadcast storm on switching Ethernet environment.

讨论和分析交换式以太网环境下的广播风暴的产生机理和对策，给出一个程序化自动跟踪风暴源的方法，有效地解决广播风暴防治问题。

Based on switching network,the technology of Virtual Local Area Network is applied to construct a logical network which spans different subnet.It can avoid the network broadcast storm in order to improve the performance,security and expansion of whole campus network.

VLAN是在交换网络的基础上构建可跨越不同网段、不同网络的端到端的逻辑网络，可避免校园网广播风暴的出现，以提高整个校园网的安全性和可扩展性。

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