For the polysaccharides with immunity enhancement activity, the activity is affected by the constitutes of backbone chain, molecular size, and other factors which cause comformational changes of the polysaccharides.

The primary study was conducted on the synthesis and properties of unsaturated polyester containing multi-alicyclic groups in the backbone chain.

对主链含多脂环不饱和聚酯的合成和性能进行了初步研究。

I use a backbone frame and a pulley and plastic plates, wadding poles.

我用了一个主干框架和一个滑轮、塑胶板、绵增极。

It also achieves the goal of exchanging information between nodes that the real-time data requires by making use of adaptive priority adjustment. ( 2) It designs a sink-based distributed backbone wireless network hierarchical routing protocol.

利用网络节点的自适应优先级调整，实现了不同数据实时性要求的节点间的信息交互。（2）设计了一种基于汇聚节点的分布式虚拟骨干无线网络分级路由协议。

In this paper, our work is to analyze the structure of the telecommunications backbone network and the routing rules and construct the follow model according to current network structure.

本文的工作主要是分析电信骨干网络结构，路由协议部署原则、规范。针对电信现有网络结构归纳流量模型。

In wireless sensor networks, a connected dominating set is used to construct a virtual backbone network for layered routing.

在无线传感器网络中，通常采用连通支配集来构成一个虚拟骨干网以进行分层路由。

A mass of BGP routing information is received from the backbone IPv6 BGP routing table on this platform.

依靠这个平台收集了来自backbone的大量的全球IPv6路由信息。

Jointly launched four-month China MAN Trial' 2000. Taking IP technology as the theme, the trial involves metro optical transmission network, backbone routing switching broadband integrated access, IP value added services, broadband multimedia applications, network operation& maintenance, billing and other aspects.

实验以宽带IP技术为主线，涵盖了从城域光传输网络、骨干路由交换、宽带综合接入、IP增值服务、宽带多媒体应用到网络运营维护和计费等方面，共有近20家厂商参加。

This clustering strategy makes all the sub-cluster with the same size and distributed evenly, avoiding the potential failure caused by backbone routing.

该分簇方案形成的簇大小一致、位置分布均匀，避免了由移动节点担任骨干路由可能带来的失效。

The Backbone Routing Protocol in the Future ── BGP

未来骨干网路由协议&BGP

In this paper PAHMT chelating resin having symmetrical triazole AHMT as the function group was synthesized by means of macroporous polystyrene backbone and the structure of resin was characterized.

本文以大孔聚苯乙烯树脂为骨架合成了含有对称三唑AHMT功能基的螯合树脂PAHMT，并对其结构进行了表征；

The Best-Cernet Backbone Topological Structure with Guaranteed QoS

基于QoS保证的最佳Cernet骨干网拓扑结构的一种推算方法

It was found that introducing the rigid backbone structure of EPA exerted a considerable influence on the structures and properties of flexible PU foams.

结果表明，在PU软质泡沫塑料中引入EAP刚性链对PU泡沫塑料的结构及性能有很大影响。

A simple method to quantitatively determine the the backbone structure of a protein from a set of electron density maps at medium resolution has been described.

本文叙述了一个简单的从中等分辨率电子云密度图确定蛋白质骨架结构的方法。

The artificial neuron model and backbone structure of neural network is introduced.

介绍了人工神经元模型与神经网络基本结构。

LPS, which is used as feed stock to synthesize PCS under normal pressure at high temperature, is composed of the backbone structure of polysilane ( Si-Si) and PCS ( Si-C). Active group Si-H in the chain can easily react with double bonds by hydrosilication.

高温常压法合成PCS的原料LPS含有聚硅烷（Si-Si）与聚碳硅烷（Si-C）的主链结构，链中活泼的Si-H基团与烯键容易发生硅氢化反应。

Some important IP-based multicast protocols are introduced in this paper. Some problems existing Internet multicast backbone network are pointed out, and resolving method are proposed.

本文分析比较了几个常见IP组播协议原理、方法与特点，指出了当前Internet组播协议存在的问题，并提出相应的解决方法建议。

National natural science foundation of China network ( NSFCNET) is the first high-speed computer network test bed providing native multicast service across its backbone.

中国高速互联研究试验网是我国第一个全网支持非隧道组播协议的下一代高速互联网试验床。

Scalable Application Layer Multicast Based on Backbone Network

基于主干网信息可扩展的应用层组播

STD was a rock band made up of computer technologists from Digital Equipment Corp., Xerox, Apple, and Sun, giving them inside knowledge of a technology called Multicast Backbone ( M-bone).

STD是一个由来自迪吉多电脑公司的几位计算机技术专家组成的摇滚乐队。施乐、苹果以及太阳公司给他们提供了内部知识，M-bone多址传播主干网。

The clip shows him climbing over the glass backboard and standing on the back of the rim.

视频中，只见他翻过玻璃篮板，站在篮筐的边缘上。