所谓方程式，是指两边相等的数学式。
By equation we mean a mathematical expression in which the two sides balance.
然而，解决学校教育所带来的挑战注定是一个国际化的问题，就拿一种交互式数学教学系统“HeyMath!”
Already, some of the solutions to school-teaching challenges are as global as could be.
同时得出了流体行为指数与浓度之间的数学模型关系式。
And the mathematical model function of flow behavior index and concentration was established.
至于实零点多项式的研究，更是数学本身的基本问题之一。
Polynomials with only real zeros are also a basic problem in combinatorics.
数学对话教学是改变数学独白式教学的一种有效模式。
Mathematics Dialogue Instruction is an effective pattern to change the poor teaching method of monologue.
提出了一种面向系统数学模型的模块连接式锁相环路计算机辅助分析方法。
The Research for the Plastic Profile Extrusion Die's Computer Aided Analysis System;
提出了一种面向系统数学模型的模块连接式锁相环路计算机辅助分析方法。
The Research for the Plastic Profile Extrusion Die's Computer Aided Analysis System;
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