1.
LOCALLY TOPOLOGICAL STRUCTURE OF QUARTIC SYSTEM IN THE FIRST CRITICAL CASE
第一临界情形下的四次系统的局部拓扑结构
2.
Structrue of Critical Point at Infinity and Global Analysis on Certain Quartic System;
一类四次系统的无穷远奇点结构与全局分析
3.
GLOBAL STRUCTURE OF A CLASS OF FOURTH SYSTEMS WITH A SIXTEEN ORDER SADDLE - NODE POINT;
一类带16阶鞍结点的平面四次系统的全局结构
4.
Prospects for Secondary System Development of Sichuan Power Grid in "11th Fiveyear Plan";
四川电网“十一五”系统二次发展展望
5.
The Topological Classification of the Quartic Invariant Algebraic Curve Cycles in a Class of Qudratic System;
一类二次系统四次不变代数曲线环的拓扑分类
6.
The Period Function for Quadratic Integrable Systems with Quartic Orbits
具有四次轨道的二次可积系统的周期函数
7.
"May 4th" prose speech is a multi-sided and multi-layered speech system.
五四散文话语是一个多侧面、多层次的话语系统。
8.
Weak Center for Reversible Polynomial Differential Systems with Isochrone;
一类四次可逆多项式微分系统的细中心问题
9.
Existance and Non-existance of Limit Cycle in the Fourth Quadrant of a Class of Cubic System;
一类三次系统在第四象限极限环的存在性
10.
A New 4-D Quadratic Chaos System and Its Circuit Implementation
一种新的四维二次超混沌系统及其电路实现
11.
Based on the displacement curve of four CNC Numerical Control System
基于四次位移曲线的CNC数控系统的研究
12.
Systematic Study on the Three-Level-Four-Grade Teaching Practice of Physical Education in Shanghai International Studies University;
上海外国语大学体育课程四个年级三个层次教学实践的系统研究
13.
Application of AHP in Coke Oven Four Cars System Reliability Analysis
层次分析法在焦炉四大车系统可靠性分析中的应用
14.
Circuit Implementation for a New Non-Autonomous Hyper-Chaotic Four-Dimensional Quadratic System
一个新非自治超混沌四维二次系统及其电路实现
15.
The Periodic Orbits and Limit Cycles of a Family of Reversible Systems of Degree Four in R~3
R~3中一类四次可逆系统的周期轨与极限环问题
16.
Qualitative analysis and illustrations of a kind of plane polynomial differential system with the stellar node
一类具有星形结点的平面四次多项式系统的全局结构及其实例
17.
A president of the united states if inaugurated every four years
美国总统的就职典礼每四年进行一次。
18.
A President of the United States is inaugurated every four years.
美国总统的就职典礼每四年举行一次。