The formula on definite proportion exists not only in plane figure but also in three-dimensional figure.

A display model of piling three-dimension flight path with plane figure in varying visual angle

一种变视角的飞机姿态与立体航迹叠加显示模型

Vertical etched edge profile a closed plane figure bounded by straight sides.

垂直腐蚀边界剖面图被垂直的面限制边界的有限平面形。

A closed plane figure bounded by straight sides.

被垂直的面限制边界的有限平面形。

A plane figure with 5 or more points; often used as an emblem.

有五个或更多的顶点的平面形状；经常用于徽章。

The area of an irregular plane figure can readily be obtained with this method.

采用该方法可以很容易地求解不规则平面图形的面积。

A line segment forming part of the perimeter of a plane figure.

形成一个平面图形的边界的线段。

The Projection Theorem of Acceleration among All Points in a Plane Figure

平面图形内各点的加速度投影定理

Graphic method for geometry properties of plane figure

平面图形几何性质的图解法

A method and programme of drawing section line of plane figure with microprocessor

在微机上绘制任意平面图形剖面线的一种方法与程序

Automated Plotting of Roads Network Plane Figure in Urban Planning CAD

城市规划CAD中道路网平面图形的自动绘制

On the Design of the Plane figure of Ming City Wall in Nanjing

明南京城墙设计思想探微

For measuring the area of an irregular plane figure.

测量不规则平面图的仪器。

The change law of the plane figure in space area under affine transformation

空间场的仿射变换下平面图形面积的变化规律

Projection Relation of Acceleration of Arbitrary Two Points on Plane Figure

平面图形上任意两点加速度的投影关系

Application of evolution method of plane figure on the earthquake prediction

平面图形演化方法在地震预报中的应用

Solution of Bank Campus IC Consume Security based on Campus Network

基于校园网解决银行校园IC卡消费安全

On Campus Violence& For the Protection of Students' Right

论校园暴力&为保护学生权利而斗争

The Design and Implementation of Computer Labs Manager Based on Campus Network

基于校园网的《机房总管》系统软件的设计与实现

The Design and Development of Network Payment Platform and Payment System Based on Campus Network

基于校园网的网络支付平台及缴费系统的设计与开发

Study on Campus-wide Network Based on Workflow

基于工作流的数字校园网研究