查询词典 pre reduction

Grouping lesional and homeochronous normal hip to pair, dynamic measuring AI and AI in each age groups of lesional and normal hip on before reduction、after reduction 3rd month、6th month、9th month、12th month, describing the characteristics of acetabular development in each age groups on every observation time-points, comparing the difference of lesional acetabular development with normal acetabular physiological development.

并以患侧髋关节与同期健侧髋关节进行配对分组，动态测量各年龄组患儿患、健侧髋关节在复位前、复位后第3、6、9和12个月时的髋臼指数和髋臼深度与宽度比值AI(D/W，描述各年龄组在各时间观察点上髋臼发育的特点，比较患侧髋臼发育与健侧髋臼生理发育的差异。

The article proposes a Rough set concept of impartibility pattern of the properties and their relationships, which is based on the theoryof properties reduction by use of the method of matrixs. The article presents a method of condition property and values of the property reduction.

摘 要：基于属性约简的分明矩阵方法的思想，该文提出了Rough 集不可分明属性模式和属性关系的概念，给出了基于二进制的条件属性约简和属性值约简方法，结果说明，该方法比传统的Rough 集理论中的方法更简便、快捷。

To overcome the disadvantage of ordered reduction which is based on the discernibility matrix as the time complexity is increscent exponential along with the size of decision tables,the judgment theorem with respect to distribution reduction is obtained,and a heuristic algorithm is proposed.

在不一致决策表中，以知识的包含度为基础，将一致和不一致对象分开，定义了一种新的属性重要性；为克服区分矩阵法时间复杂度随系统大小增加而指数增长的缺陷，给出分布约简的数学判定定理，提出了一种求分布约简的启发式方法。

Key words］ spondylolisthesis;posterior discompression;reduction-fixation;intertransversal fusion procedures;vertebral reduction rate;JOA evalustion system

关键词］腰椎滑脱症；后路减压；复位内固定；植骨融合术；椎体复位率；JOA评价系统

The operative techniques of open intracapsular reduction and internal fixation with locking proximal humeral plate can enhance validity of reduction and stability of fixation,and alleviate the disturbance on vascular supply of the humeral head.

采用切开囊内复位技术和LPHP锁定肱骨近端接骨板内固定治疗肱骨近端骨折可减轻肱骨头血运影响，提高骨折复位的有效性和固定的稳定性。

The results show that the active loss of heteropolyacid catalyst are mainly attributed to the reduction of surface area, coke formation, and reduction of acid strength during the long term of operation for isoamylene unit. The improvement aspects of the catalyst performance for the decomposition of TAME are proposed.

结果表明，在长周期运行中，催化剂比表面下降、结焦和酸性的损失是导致催化剂活性降低的主要原因，最后提出了TAME裂解催化剂的改进方向。

The oxido-reduction and reduction-reoxidation specificity of heteropolyacid salts containing various kinds of alkali metals used for one-step oxidition of isobutyraldehyde to produce methacrolic acid was studied by ESR method.

用ESR法研究了异丁醛一步氧化制甲基丙烯酸过程中所用杂多酸盐催化剂的氧化－还原特性。

The key steps were Stetter reaction, regioselective reduction, substitute controlled asymmetric reduction and Paal Knoor reaction.

该方法不仅避开了专利方法，而且高效、原料便宜易得、成本低，具有很大的应用前景。

Methods:Fifty-six patients with metacarpal and phalangeal fractures who were reviewed in the study were divided into two groups:Group A and Group B.Thirty-two patients in Group A were treated with open reduction,Kirschner internal fixation and postoperative plaster splint external fixation.Other 24 patients in Group B were treated with open reduction,Mini-plate internal fixation,without any external fixation.

回顾分析经完整随访的56例掌指骨骨折患者的治疗和康复情况，A组：32例掌指骨骨折患者予以行切开复位交叉克氏针内固定接骨术，术后石膏夹板外固定；B组：24例掌指骨骨折患者予以行切开复位微型接骨板内固定接骨术，术后未用外固定。

Starting from chiral proline, pipecolinic acid, piperazine-2-carboxylic acid and 1,2-diphenyl amino alcohol, a series of structurally simple and easily prepared amides were developed as highly effective Lewis basic organocatalysts for the asymmetric reduction of imines with trichlorosilane as the reducing agent, which promoted the reduction of N-aryl imines with high yields and excellent enantioselectivities with an unprecedented substrate spectrum.

本文分别由手性脯氨酸、哌啶酸、哌嗪酸以及氨基醇出发，设计和合成了一系列结构新颖、合成简便、性能优良的酰胺类有机小分子路易斯碱催化剂，以廉价的三氯氢硅为氢源，用这些催化剂催化亚胺不对称还原，得到了非常优良的收率、对映选择性和前所未有的底物普适性。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。