视

Based on summarizations of system simulation technology and visual simulation technology, this thesis makes a deep research on system design technology and visual environment design technology with the back ground of two avion simulation systems.

本论文在全面综述系统仿真技术、军机仿真技术和视景仿真技术理论的基础上，以两种型号的现代军机仿真系统为背景，对系统顶层设计技术和视景环境设计技术进行了深入的研究，主要研究内容如下

Based on summarizations of system simulation technology and visual simulation technology, this thesis makes a deep research on system design technology and visual environment design technology with the back ground of two avion simulation systems. This thesis mainly studies the followings

本论文在全面综述系统仿真技术、军机仿真技术和视景仿真技术理论的基础上，以两种型号的现代军机仿真系统为背景，对系统顶层设计技术和视景环境设计技术进行了深入的研究，主要研究内容如下

Methods: Light and electron microscopy combined with stereology methods were used to investigate the rat renal corpuscles at different growing stages.

采用光镜、电镜技术并结合体视学测量方法，对不同发育阶段大鼠肾小体进行形态观察和体视学计量。

In the pioneer NNSC model proposed by P. O. Hoyer, this model was regardless of the feedback from V1 to lateral geniculate nucleus, so Hoyer's model simplifies the physiological structure of the visual cortexes and was liable to noise pollution.

Hoyer 最早提出的 NNSC 模型并没有考虑主视皮层 V1区到外侧膝体的反馈连接，因此， Hoyer 的 NNSC 模型过于简化了视皮层的生理结构，受噪声影响比较大。

Under it, apparent motions of the planets are to be explained in terms of deferents and epicycles around the earth.

依据此，则将根据饶地球的圆心轨迹和周转圆来解释行星的视运动。在周转圆上的视运动映射属于常态科学的领域。

The purpose of this paper is to realize the downhole operation simulation system with the technology of Scene Simulation.

本文旨在建立一套利用视景仿真技术开发的油田井下作业视景仿真系统。

According to the proportion of taxa from archaea, eubacteria and eucarya in each clade, the division of three clades is consistent with three domains of life. However, every clade contains the rhodopsin from the other domain.

系统发生分析结果表明：这些微生物视紫红质分为3个进化分支，每个分支中按照古细菌，细菌和真核生物的多少可以归类为古细菌类、细菌类和真核生物类微生物视紫红质。

In the establishment process of three dimensional visualization model, we proposed the contour line drill hole - multi-layer face mold method.This method which improves Delaunay triangulation, is suitable for the random polygon triangulation and is easy for computer to realize. It makes three dimensional stratum visualization model of picking area realized under the limited condition.

在三维地层可视化模型的建立过程中，提出了基于等高线的钻孔—多层面模型方法，这是一种对现有的Delaunay三角剖分方法进行了改进，该方法适用于任意多边形的三角剖分，且易于计算机实现，使采区的三维地层可视化模型在有限条件下也能够实现。

The relationship between field of view and departure maneuver is developed.(2) The departure trajectory and safety characteristic are discussed for V-bar departure, R-bar departure and arbitrary direction departure.

1研究了视场约束下V-bar撤离的径向和切向冲量方案，利用解析和数值结合的方法得到了冲量大小和视场角的关系；(2)针对V-bar分离、R-bar分离和任意方向分离，分别研究了分离后的相对轨迹及被动安全特性。

In general, for each field stop size, choosing eyepieces with shorter focal lengths and larger apparent fields of view will allow you to see more detail and fainter stars.

通常，针对每一个尺寸的视场光阑，选择短焦距和大表现视场的目镜将允许你看见更多的细节和暗淡的星光。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。