查询词典 replacement theorem

METHODS: A total of 22 patients with complex fracture of proximal humerus, managed by humeral head replacement in Changhai Hospital of The Second Military Medical University from June 2006 to December 2008 were collected, including 12 males and 10 females, with average age of 67 years (52-86 years). During the procedure, soft tissue damage was minimized, the bone of the tuberosity was reserved as much as possible, appropriate matching size of humerus head prosthesis was selected, and early staging functional rehabilitation was performed. Neer's scoring system was used to evaluate the treatment results after replacement.

回顾性分析2006-06/2008-12解放军第二军医大学长海医院骨科收治的肱骨近端粉碎骨折患者22例，男12例，女10例，年龄52~86岁，平均67岁；全部患者均采用人工肱骨头置换，置换过程中尽量减少软组织损伤，保留大结节部位的骨质，选择与关节盂大小匹配的肱骨头假体，早期分阶段功能锻炼，置换后采用Neer评分标准评价人工关节功能。

Chapter II of the Seventh String Quartet in general on the background, with pitch-class set theory analysis of three replacement sound relationship between the unified group of pitch throughout the whole idea of music, as well as the theme of fragment replacement pitch twelve-tone theme with a free form.

第二章大致阐述第七弦乐四重奏创作背景，用音级集合理论分析出三音组音高置换关系统一贯穿全曲的思路，以及主题片段音高置换与自由十二音主题形态。

The design of replacement underlayer thickness is crucial to the replacement method of ground treatment.

换土垫层厚度设计是换填法地基处理设计的关键。

On comparing with the common type 4, there are 18 genes presenting change in the rest 21 types, most of them are tRNA genes, and gene replacement, gene increase and gene absence are frequently happened; on the contrary, protein genes are more steady, gene change is mostly of gene replacement. The genome size of Gymnophiona are all smaller than 18000 bps and most of them range from 15000 to 16000 bps, those of Urodela and Anura are bigger than 16000 bps, most of Urodela range from 16000 to 17000 bps, most of Anura range from 17000 to 18000 bps.

与类型4比较，其余21种线粒体基因组类型涉及基因变动的基因共有18个，其中变动比较多的是tRNA基因，移位、增多和缺失的发生频率都较大，而蛋白编码基因比较稳定，主要是移位。78种两栖动物中，蚓螈目的线粒体基因组均小于18000bps，多数在15000~16000bps；有尾目和无尾目均大于16000bps，其中有尾目多数在16000~17000bps，无尾目的多数在17000~18000bps。

Species richness and Pielou evenness index were used to measure species diversity. Species richness in polluted area was 32-67, while in control area it was 47-82. Pielou evenness index of tree layer was 0.1161-0.8509, while those of shrub layer and herb layer were 0.1763-0.3249 and 0.0443-0.2601, respectively. The results showed that both species richness and Pielou evenness index were influenced by the point source pollution. Species importance values showed significant differences between polluted area and control area. Dominance of different species had changed, and some species even disappeared under the pressure of pollution, indicating a process of species replacement in plant communities. Such species replacement can provide a scientific basis for species selection for restoration of human-damaged ecosystem. The natural regeneration of Quercus variabilis was insensitive to pollution, while Cupressus funebris was effected seriously.

仅在污染区中出现的物种数量远低于仅在对照区中出现的物种数量；(2)可分出4种基本的群落类型：马尾松林、柏木林、栓皮栎林和马尾松＋栓皮栎林，各群落特定层次的物种丰富度指数以及Pielou均匀度指数在污染区与对照区之间存在显著差异；(3)污染胁迫下，物种在群落中的生态优势度发生了变化，反映了群落中不同物种相互替代的过程，这种物种的替代可为今后受损生态系统人为恢复过程中物种的筛选提供一定的理论参考；(4)对群落中王要物种更新的调查发现：栓皮栎林对污染不敏感；柏木林污染区与对照区幼苗数量及分布格局均有明显差异，污染条件下群落未来演替受到严重干扰。

Summary of Background Data. Multisegmental disc replacement procedures belong to the so-called "off- label" indications for disc replacement, which still lack evidence ofnoninferiority when compared with fusion procedures.

背景。多节段的腰椎人工椎间盘置换手术属于所谓的&无标签&的椎间盘置换指征，目前依然缺乏明显的优势，和腰椎融合技术相比。

First, this paper gives an introduction of some methods of unequal probability sampling, their estimators and variance estimators, including sampling with pps with replacement, methods of sampling without replacement suggested by Brewer, Durbin, Sampford , Des Raj , Murthy , Rao-Hartley-Cochran. Then, at the basis of Rao and Bayless's study , we consider that population can be splited two random subpopulations, which are respectively drawn from different infinite super-populations, and compare the stabilities of estimators of the methods that given above.

本文首先从理论上介绍了若干种不等概率抽样方法，它们的估计量、估计量的方差及其估计，其中包括有放回PPZ及PPS抽样，不放回不等概率抽样中的Brewer、Durbin、Sampford、Des Raj，Murthy、Rao-Hartley-Cochran等人的方法；其次，在Rao和Bayless两人就样本单元数n=2的情形对上述抽样方法进行比较的基础上，将总体随机地分成两个子总体，视每个子总体取自不同的线性超总体，在文中，我们利用计算机实现随机分组，并通过画图比较各方法估计量的稳定性，结果表明，对变异系数C.V。

First, this paper gives an introduction of some methods of unequal probability sampling, their estimators and variance estimators, including sampling with pps with replacement, methods of sampling without replacement suggested by Brewer, Durbin, Sampford , Des Raj , Murthy , Rao-Hartley-Cochran.Then, at the basis of Rao and Baylesss study , we consider that population can be splited two random subpopulations, which are respectively drawn from different infinite super-populations, and compare the stabilities of estimators of the methods that given above.

本文首先从理论上介绍了若干种不等概率抽样方法，它们的估计量、估计量的方差及其估计，其中包括有放回PPZ及PPS抽样，不放回不等概率抽样中的Brewer、Durbin、Sampford、Des Raj，Murthy、Rao-Hartley-Cochran等人的方法；其次，在Rao和Bayless两人就样本单元数n=2的情形对上述抽样方法进行比较的基础上，将总体随机地分成两个子总体，视每个子总体取自不同的线性超总体，在文中，我们利用计算机实现随机分组，并通过画图比较各方法估计量的稳定性，结果表明，对变异系数C.V。

Ini replacement to xml format - Microsoft has been trying to get developers to move away from INI files for quite some time, pithily suggesting using the Registry instead... despite the fact that it's rarely a suitable replacement.

Microsoft 一定会让开发人员在某个时候不能使用INI文件，建议使用注册表取代，虽然现在还不有一个合适的取代产品。

β-（3,5-Diterbutyl-4-hydroxyphenyl） propionyl chloride is synthesized with 3,5-methyl propionate as raw material via hydrolytic reaction and replacement reaction,and the replacement reaction conditions were explored.

摘 要：以β-（3，5-二叔丁基-4-羟基苯基）丙酸甲酯为原料，通过水解反应和酰氯合成反应合成了抗氧剂中间体β-（3，5-二叔丁基-4-羟基苯基）丙酰氯。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。