结构单元

When the repeating unit is composed of several monomeric components following each other in a regular fashion, the polymer is commonly named according to its structure.

当重复单元，是由若干个单体组成后对方经常时装聚合物通常被称为根据其结构。

The enhanced two-photon absorption found in these chromophores was attributed to the fact that the multibranched chromophores had both an extended π-conjugated system and an increased intramolecular cooperative effect compared to the one-branched chromophore.

这些多枝结构化合物的双光子吸收截面较大，双光子吸收增强来源于多枝分子中扩展的π共扼体系和重复单元的协同效应。

Touscheklifetime at 300mA is as long as 4 hours because of large overvoltage factor.Injection energy is 100MeV,"Multiturn" technique will be applied in injectionscheme with the help of 3 kickers and a deflecting magnet.

图6中给出贮存环的结构概貌，它由四个超周期组成，每个包括两个45°的二极铁和六个四极铁，形成一个稳定的聚焦单元。

Based on the time-space structure of source rock, reservoir rock and cap rock in petroleum system of Neopaleozoic in south of North China Basin, play and pool-forming unit of Neopaleozoic was divided. The matching relation between trap formation period and peak period of source rock hydrocarbon generation and expulsion was analyzed, which pointed out the future direction of hydrocarbon targets exploration in this area.

根据华北盆地南部上古生界含油气系统中烃源岩、储集岩和盖层的时空结构，进行了上古生界成藏组合和基本成藏单元的划分研究；通过对圈闭形成期与烃源岩生排烃高峰期匹配关系的分析研究，指明了今后该区油气勘探目标的选择方向。

Also, Petrologic features, diagenesis and pore evolution features, and reservoir feature were worked and evaluated. The study direction of Neopaleozoic reservoir geology in this area was pointed out too.4. Based on the time-space structure of source rock, reservoir rock and cap rock in petroleum system of Neopaleozoic in south of North China Basin, play and pool-forming unit of Neopaleozoic was divided. The matching relation between trap formation period and peak period of source rock hydrocarbon generation and expulsion was analyzed, which pointed out the future direction of hydrocarbon targets exploration in this area.

同时，对区内砂岩储层的岩石学特征、成岩作用及孔隙演化特征和储集特征方面等进行了综合研究和客观评价，并分析讨论了今后该区上古生界油气储层地质的研究方向。4、根据华北盆地南部上古生界含油气系统中烃源岩、储集岩和盖层的时空结构，进行了上古生界成藏组合和基本成藏单元的划分研究；通过对圈闭形成期与烃源岩生排烃高峰期匹配关系的分析研究，指明了今后该区油气勘探目标的选择方向

This paper developed a multiple noded isoparametric element for the nonlineer analysis of space frames.

推导建立一种用于空间杆系结构非线性计算的多结点空间等参杆单元。

Taking the 8×8 optical matrix switch for example, two types of EBN construction and their rearrangeable nonblocking characteristics were studied, and the drive logic of switching units was provided.

以8×8矩阵光开关为例，分析了EBN结构的两种形式及其可重构无阻塞特性，给出了开关单元驱动逻辑。

A strictly nonblocking 4×4 matrix optical switch based on the switching units of Mach-Zehnder interferometer and Banyan network was proposed.

提出了一种基于Mach-Zehnder干涉仪结构开关单元和Banyan网络的严格无阻塞4×4矩阵光开关。

The classifications, characteristics and recent applications of sliding construction are summarized. Some key technologies of sliding construction such as calculation of sliding drift load, sliding nonsynchronous affection, sliding dynamic response, stability of sliding blocks, and affection on structural mechanics for different sliding blocking have been researched, and the corresponding programs have been coded.

总结了滑移法施工的分类、特点以及应用情况，对于滑移法施工牵引力的计算、滑移不同步影响、滑移法施工激振影响、滑移施工过程中的单元分块稳定性研究、滑移分块对结构成型影响等关键问题进行了理论推导与算例分析，并编制了相关的实用程序。

Its software development tool are very important to the applications of virtual reality technology because of the rapid development of network technology Being aimed of the shortcoming that the development for the distributed parallelism of simulation computing unit is not enough and formal in current distributed virtual environment systems, we study the modeling language of virtual environment and the system architecture of distributed virtual environment in a new view point, build a complete extensible theory framework novelly for the research of virtual environment technology.

本文针对当前分布式虚拟环境系统对仿真计算单元的分布并行性开发不够充分和规范的缺点，从一个全新的角度来研究虚拟环境的建模语言及其分布式虚拟环境的系统结构，开创性地为虚拟环境技术的研究建立了一个全面可扩展的理论框架。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。