B . diffluence plate sketch map as the planform B .分流板示意图为俯视图。
2.
In the top viewport , find the curves selected below and loft them together using the default options 在俯视图，找到下图中所选曲线，用默认设置一起放样。
3.
In the top viewport , select the handle and the button . mirror the surfaces , using object snap ‘ mid 在俯视图中，选择手柄及按钮，选择目标捕捉中点，对面进行镜像。
4.
This is the top view of an oxygen - silicon tetrahedron . the four large spheres represent oxygen atoms , and the dark one represents a silicon atom 这是一个硅氧四面体的俯视图。图中四个大的圆球代表氧原子，那个暗色的圆球则代表一个硅原子。
5.
Fig . 2 internal cylinder configuration , top . overhead view of low pressure liquid withdraw , bottom left . overhead view of liquid and high pressure gas with - draw , bottom right 图2上面是钢瓶的内部结构，左下是低压液体提取装置的俯视图，右下是液体和高压气体提取装置的俯视图。
6.
Abstract : the shapes of non - circular punch and matrix are processed by transferring an arc into a polygon . the method for dies cad system is introduced , which can generate the main view automatically based on the vertical view 文摘:介绍了在冲模cad系统中，采用圆弧多边形化的方法，对非圆凸模和凹模形状进行处理，提出了一种根据俯视图自动生成主视图的方法。
7.
Meanwhile , a kind of fast simple aircraft - environment simulation system , an aircraft - environment simulation system based on 2d terrain , is put forward , considering the condition that the direction of viewpoint is vertical to the ground 同时，根据当视点方向与地面垂直时，三维地景变成为二维俯视图的原理，又设计了一个快速简单的飞行环境仿真系统?基于二维地形的飞行环境仿真。
