查询词典 chiasma

The pure screw dislocation is easily etched along the steps that the dislocation terminates. Consequently a small Ga-polar plane is formed to prevent further vertical etching,resulting in an etch pit shaped like an inverted truncated hexagonal pyramid at the terminal chiasma of two surface steps.

纯螺位错易于沿着由它结束的表面阶梯被腐蚀，形成一个小的Ga极性面以阻止进一步的纵向腐蚀，因而其腐蚀坑是位于两个表面阶梯交结处的截底倒六棱椎。

The latency and amplitude of F-VEP following ONI with ONID and without ONID were compared and analyzed to estimate the feasibility of ONID and to choose the most appropriate cases andoptimal operation timing.2. H.E. or Luxol Fast Blue staining, and transmission electron microscopy were used to observe the configuration and structure of optic nerve, retinal ganglion cells and chiasma opticum.

通过光镜、电镜和荧光显微镜对ONID后视神经轴突及其胞体——视网膜神经节细胞(retinal 第四军医大学硕士学位论文 ganglion cen，RGC)的观察，反映视通路上各部位的形态、结构及数量的变化，进一步验证切开减压对视神经不完全损伤的保护作用。

The brain tissue 2mm away from the chiasma was cut frontally, the middle part left, immersed in hard raffin.

大鼠脑缺血再灌后缺血区脑组织中uPA表达增加、PAI-1表达降低，进而加重缺血再灌注损伤。

Methods: Consult VP diagnosis standard of American psychiatry institute what WHO promulgated, we chose 80 VD sufferer. We adopt study method of random and comfort drug comparison, both blind method to dose and front and bank of oneself chiasma test. We chose MMSE and ADL to evaluate curative effect through comparing Statistic mark before cure and after cure. Results: We had treated 72 VD sufferer on Jiannaoyizhi capsule. In these patients, there are 15 obvious efficiency, 38 efficiency and 19 inefficiency. The total efficiency is 73.61%. It has obvious reform action on cognizing obstacle and behavior.

参照WHO公布的美国精神病学会VD诊断标准入选VD患者80例，采用随机安慰剂对照，双盲给药，自身前后交叉试验的研究法，选择简易智能量表、日常生活自理能力量表于疗程前后统计分值变化进行疗效评估石结果：健脑益智胶囊治疗VD患者72例，显效15例，有效38例，无效19例，总体有效率73.61%，对VD患者的认知障碍和行为均有明显改善作用，其效应明显优于安慰剂(P.05)。

Each vessel ramified several twigs (from 2 to 3) into the lateral margin,superior and inferior aspects of the lateral part of the optic chiasma,and the lateral half of the optic nerve neighboring the OC. In summary,the perforating arteries with long free segments of the external brain took the form of chains or series of irregular loops,ran in the subarachnoid space and feed special areas.

结果 视交叉侧动脉自颈内动脉C2段内侧壁发出，在蛛网膜下腔迂曲走行，起始部位靠上，几乎与视交叉处于同一水平，直径(0.18±0.06)mm，在到达视交叉之前发出2～3条亚支，呈"分水岭"样分布于视交叉侧缘、视交叉侧部的上面和下面靠外侧的部分以及视神经近视交叉处外侧半。

See also chiasma; independent assortment; tetrad.

参见 chiasma； independent assortment； tetrad 。

Results: There was no contorting phenomenon of hemoglobin in Pisces Cyprinus carpio and Amphibia Rana catesbeiana in the the course of "direct chiasma"、"crossing" and "surrounding" experimentation.

结果：鲤鱼、牛蛙的血红蛋白自身在&直接交叉&、&穿过&、&兜过&实验电泳过程中均未出现扭曲现象。

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。