查询词典 restriction crack

Improved high ionic strength medium was adopted to extract the cpDNAs of Yunnan wheat,Tibet semiwild wheat and two cultivars of common wheat (Chinese Spring and Een 1).Restriction fragment analysis of cpDNAs was carried out with the use of 7 restriction enzymes.

亚种。我们采用改进的高离子强度法，提取云南小麦、西藏半野生小麦、普通小麦的两个品种(中国春和鄂恩1号)的叶绿体DNA，并用7种限制性内切酶对它们的叶绿体DNA进行了酶切图谱分析。

In the west of China.Improved high ionic strength medium was adopted to extract the cpDNAs of Yunnan wheat,Tibet semiwild wheat and two cultivars of common wheat (Chinese Spring and Een 1).Restriction fragment analysis of cpDNAs was carried out with the use of 7 restriction enzymes.

亚种。我们采用改进的高离子强度法，提取云南小麦、西藏半野生小麦、普通小麦的两个品种(中国春和鄂恩1号)的叶绿体DNA，并用7种限制性内切酶对它们的叶绿体DNA进行了酶切图谱分析。

All of the 58 restriction endonucleases were used to investigate the mtDNA diversity. Four restriction endonucleases, DraⅠ、SnaBⅠ、SspⅠ and Vsp Ⅰ, were polymorphic. Based on presence or absence of the the 215〓 SspⅠ site, all of the 13 mtDNA sequences were divided into two groups.

利用DNAClub软件对AT富集区和tRNA〓基因的DNA序列进行了模拟酶切，所有的58种内切酶中有10种内切酶在13个材料中有酶切位点，仅4种酶DraⅠ、SnaBⅠ、SspⅠ和VspⅠ表现出多态性，且主要位点差异在于SspⅠ酶切位点的有无（序列的第215位的C/T）。12个品种中有4个品种（豫早1号、豫早2号、鲁红、33）没有此酶切位点，另外8个品种有此酶切位点，野柞蚕也没有此酶切位点。

Some problems are discussed in this paper which is"spale-restriction","time-restric- tion"and"cross-section-restriction on the transuranium s limit".

本文讨论了超铀元素存在的&空间限制&、&时间限制&和&生成截面限制&。

In the second part, the article specially researches the problems and reasons for the entrepreneur"s motivation and restriction in the reforming of the state—owned enterprise. There are five problems on the previous means of the motivation and restriction, including unclear subject , undistinct object , undefinite principle, unperfect means and diversified goals . The reasons for the problems are that the definition of the entrepreneur in state—owned enterprise is ambiguous ,and the appointment lags behind the reality ,also the trammels of traditional ideas don"t smash.

在回顾了国有企业改革进程中国有企业家激励与约束方式的基础上，分析过去的激励与约束存在主体不明确、客体不清晰、原则不确定、方式不到位、目标多元化的五个问题；然后分析这些问题产生的三个原因，即国有企业家界定的模糊性、任用方式的滞后性和传统思想观念的束缚。

Circumfusing seeking the appropriate motivation model which adapts to the reality of enterprise, this paper which is based on three theories (human capital theory, motivation theory and contingency theory) forms motivation and restriction system matching market economy, and researches contingency motivation strategy, human capital pricing and human resource restriction to make human capital contribute more to the economic benefit of enterprise.

本文立足于人力资本理论、激励理论和权变理论三大基石，围绕着寻找适合企业实际需要的激励策略，形成与市场经济相配套的激励约束机制，以提高人力资本对企业经济效益的贡献这一研究目标，对人力资本的权变激励策略、人力资本定价、人力资本约束等内容进行了深入研究。

This text is an explanation and reading of wang xiaobos novel "hongfu elopes in night".the focal point lies in finding the existence circumstances question of the person that reflects in the novel, the concerned text at first is the external restriction on people, and think a kind of history that this kind of restriction is true , all show in different forms in different periods.

本文是对王小波小说《红拂夜奔》的1次解读。重点在于发掘文本中所反映的人的生存境遇问题。本文首先关注的是外界对人的限制，并且认为这种限制是1种历史的真实，在不同的时期都以不同的形式展现出来。

The restriction function of complex machine non-tree system isgiven, the restriction of non-tree system is raveled, and the dynamic modeling of non-tree system

摘 要：根据复杂机电动力学系统的特点，提出了一种约束函数递推组集法的复杂机电系统全局建模方法。

By the analysis of the characteristic and restriction of the gear components ,this paper upbuilds the characteristic model based on the restriction and actualizes data transmission and information sharing among CAD.CAE and CAPP .This paper analyzes the general principle of parameter determination and strength check about gear and researches the algorithmic of gear strength check based on the characteristic .This paper introduces expert knowledge into respective procedure of CAD.CAE and CAPP and actualizes the intellectualization in design process .strength analysis and process planning .

以齿轮类零件作为研究对象，在分析了其特征及约束的基础上，利用数据库技术和图形单元建模技术，建立了基于约束的特征模型，实现了CAD／CAE／CAPP之间的数据传输和信息共享；分析了齿轮参数确定、强度校核的一般原则，进行基于特征的齿轮强度校核的算法研究；将专家知识融入在CAD、CAE、CAPP各个过程中实现了设计过程、强度分析和工艺分析的智能化。

In the research, the study of car impact test and numerical simulation method are both used. Based on works that have done, an impact model containing car model, dummy and restriction system model was built. According to national regulation, different types of impacts were simulated. The fuel cell auto's impact safety was analyzed, and the injury criterion for occupant can be read out directly by simulation data. The main research content of this project is to set up the fuel cell auto's frontal impact model, side-impact model, rear-impact model and the whole frontal impact model, which contains car model, dummy, restriction system model and so on, and calculating these models.

在本课题的研究过程中，博采众长，坚持创新，在综合分析总结前人研究经验的基础上，将实车碰撞试验研究与仿真计算分析方法结合起来，统一车身耐撞性有限元计算分析与乘员在约束系统作用下的运动响应的多体动力学分析，采用整车虚拟碰撞试验法进行燃料电池轿车的碰撞安全性研究，即建立一个集车辆、人体模型及乘员约束系统三者于一体的完整的车辆模型，以国家安全法规为依据，进行各种碰撞型式的整车虚拟碰撞试验，利用仿真计算结果进行燃料电池轿车的碰撞安全性分析，直接预测乘员的伤情指标。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。