查询词典 reverse twist

In this paper, numerical calculations of magnetically induced twist effect in planar nematic liquid crystal are presented. The transmission of polarized light passing through magnetically induced twist distribution in planar nematic liquid crystal is calculated with "4-4" matrix algorithm. On the experimental side, the optical phase retardation method is used to detect the magnetically induced twist effect in planar nematic liquid crystal 5CB(4′-n-penty1-4-cyanobiphenyl) at 27℃.

对平行排列5CB(4′-n-penty1-4-cyanobinpheny1)丝状液晶在静磁场中扭曲变形做了严格的数值解，给出了严格分布情况；利用光学&4*4&矩阵算法，计算了线偏振光在严格分布下的传输情况；在实验方面，应用光学相位延迟法对平行排列5CB丝状液晶在静磁场中(温度27℃)线偏振光的通过情况进行了测量。

The Reverse Construction Method has not been well developed in our country. The paper discussed the designing method of the Reverse Construction Method and made a comparison with the regular construction method and studied some key technique of the Reverse construction procedure combining construction practice, such as diaphragm and mid-maintain columniation designing and constructing, dewatering, earthwork excavating, diaphragm wall structure constructing, surrounding buildings protection, construction inspecting and so on.

本论文探讨了逆作法的设计方法，同时与顺作法进行了对比，并结合工程实践研究了逆作法施工中的多项关键性技术，如地下连续墙与中间支撑柱设计与施工、基坑内降水、土方开挖、地下结构逆作施工、周围建筑物保护、施工监测等。

The method includes establishing one reverse mapping list comprising list items; reading the mapping data recorded in the data block state list item area to the list items during system initialization; checking reverse mapping list and finding the data block in Flash memory during reading some logic block; and writing the updated data into the empty data area of one new data block, writing the mapping data between the new logic block and the new data block into the state list item area and updating the mapping data of the corresponding list item in the reverse mapping list during writing some logic blcok.

包括：建立一个由表项组成的反向映射表，一个表项对应一个逻辑块；在系统初始化过程中，将数据块状态表项区中记录的映射信息，按逻辑块号与表项间的对应关系读取到各表项中；读取某逻辑块时，以其逻辑块号作为表项索引查找反向映射表，定位到表项，根据表项中记录的映射信息，在Flash存储器件中查找到数据块；写入某逻辑块时，将更新数据写入一新数据块的空白数据区中和将该逻辑块与新数据块间的映射信息写入状态表项区中，同时更新反向映射表相应表项的映射信息。

This paper describes an approach to reverse engineering based on the formal semantics of the strongest postcondition predicate transformer,and the partial correctness model of program semantics introduced by Hoare. The main point of our investigation is how to use informal and formal methods for reverse engineering. The approach provided by this thesis is mainly to process the C program system for reverse engineering.

本文描述的逆向工程中的形式化方法采用最强后置条件谓词转换技术和Hoare理论中有关程序语义的部分正确性模型，研究的重点是利用形式化技术和非形式化技术对程序代码进行逆向工程，以支持软件理解和维护。

During the period from the reverse trendelenburg position to the starting point for the closure of the valve, the reverse flow of blood occurred in the experimental group with the velocity of (1.4 ± 0.3) cm/s; while in the control group, there was no reverse flow of blood, but the peak flow rate was decreased from (21.3 ± 2.1) cm/s to (18.2 ± 3.3) cm/s.

动物于头高脚低位至瓣膜开始关闭时，实验组均出现血液返流现象，返流流速（1.4 ± 0.3）cm/s；对照组未出现血液返流现象，但血液流速下降，由高峰流速（21.3 ± 2.1）cm/s 减至（18.2 ± 3.3）cm/s。

Use reverse Our sidecar have two style reverse gear box:the 52 style and 331 style,now I show you hao to use the 52 style reverse gear box.

使用侧扭转我们有两个风格扭转齿轮箱： 52式和331式的，现在我告诉你浩使用的52式反向齿轮箱。

Results (1) The forward and reverse subtracted cDNA libraries of different metastastic potential large cell lung cancer cell lines were successfully constructed;(2) With blue-white colony and dot blot, 307 positive clones in the forward subtracted library and 78 positive clones in the reverse subtracted library were obtained;(3) 55 clones were successfully sequenced in the forward subtracted library. Homolog analysis confirmed 23 differential expression segments, which were similar to the human genes already known, including NME2, NPM1, MT 2A, HSPE1, TAFIA, EPRS, PX19 and EIF3S9 et al;(4) 31 clones were successfully sequenced in the reverse subtracted library. Homolog analysis confirmed 16 differentially expressed segments. 15 of them were similar to the human genes already known, including ANXA2, TUBB, PKN2, GNAS, EEF1A1, SSR2 and RPLPO et al. Only one segment had partial homology to known human genes. This segment was supposed to be the new EST segments which might not have been cloned.

结果(1)成功构建人大细胞肺癌高低转移株差异表达基因正向消减cDNA文库和反向消减cDNA文库；(2)经蓝白菌落筛选和斑点杂交，正向消减文库获得307个阳性克隆，反向消减文库获得78个阳性克隆；(3)正向消减文库挑选55个克隆成功测序，经同源性分析最终确定差异表达基因片段23个与已知人类全长基因具有很高相似性(95％～100％)，这些基因包括NME2、NPM1、MT2A、HSPE1、TAFlA、EPRS、PX19和EIF3S9等；(4)反向消减文库挑选31个克隆成功测序，经同源性检索和比对最终确定差异表达基因片段16个，其中15个与人类全长基因具有很高相似性(95％～100％)，包括ANXA2、TUBB、PKN2、GNAS、EEF1A1、SSR2和RPLPO等基因。1个片段和己知人类基因仅有部分相似性，表明它可能是未被克隆的人类基因EST片段。

The results showed that the optimized content of Mg~(2+) was 5mmol/L; dNTP was 200μmol/L; Primer was 0.5μmol/L; Taq polymerase was lU/50ul in the PCR system. Only one fragment of about 270bp was amplified within the genome of 12 wild species and 23 cultivars of Mallus Mill., which indicated that Ty1-copia-like retrotransposons were archaic components of apple genome. The nested insertion of near and within the reverse transcriptase gene of Ty1-copia-like retrotransposons wasn\'t found in apple genome.2 The reverse transcriptase conservative region of Ty1-copia-like retrotransposons were amplified from Gala apple using the optimized PCR system. The amplification product was isolated, cloned and sequenced. Forty-five clones containing reverse transcriptase conservative region were obtained (accession number: AY849580 -AY849592 and DQ105035-DQ105066). Cluster analysis of these sequences showed a great heterogeneity among RT domains isolated from the same genotype.

从苹果属12个野生种和苹果23个栽培品种中都扩增到了约270bp的目的产物，且所有试材的扩增结果一致，均无目的条带以外的产物扩增，说明Ty1-copia类逆转座子在苹果属植物中广泛存在，且存在历史可能较为久远；从扩增结果看不出该逆转座子的逆转录酶基因或附近区域在苹果基因组内有嵌套行为的发生。2、利用优化了的PCR方法从嘎拉苹果基因组克隆了45条Ty1-copia类逆转座子逆转录酶保守序列(登陆号分别为AY849580-AY849592和DQ105035-DQ105066)，结果表明，同一基因组来源的这些序列存在高度的异质性。

The thesis analyzes the trait,sort,influence factors and principia of upbuilding of reverse logistics network.It demonstrates the inevitability operating reverse logistics for electrical home appliances using game theory.And then,the thesis sets up reverse logistics network for electrical home appliances,and optimizes it using multi-object MILP model.

文章分析了反向物流网络的特征、分类以及影响废旧家电回收反向物流构建的因素及构建原则；运用博弈论知识论证了进行废旧家电反向物流的必然性，在此基础上构建了废旧家电反向物流网络，运用混合整数线性规划模型对其进行优化。

At the same time, introduces systematically the history and current situation of displacement reverse analysis, describes the displacement reverse analysis theory of the elastic-plastic problem, and based on the actual project, this paper presents displacement reverse analysis in the application of the tunnel project.

同时，较为系统地介绍了位移反分析方法研究的历史与现状，叙述了弹塑性问题的位移反分析理论，并结合实际工程，研究了位移反分析在隧道工程中的应用。

Apllied the data of QuickBird-2——the highest resolution remote sensing,and based on the theory and methodology of fractal geometry,we have quantitatively studied remote sensing lineations in Gaolong gold deposit of Guangxi.

采用Quick Brid-2高分辨率卫星遥感数据，通过分形几何学的盒计维数法，定量研究广西高龙金矿区遥感线性构造。

So, sometimes, to change the color can not be your food (referring to the above-mentioned crustacean) has been a sign of boiling over.

所以，有时，来改变颜色，不能你的食物一直是沸腾了的迹象。