Also parabolic type equation commonly used now is derived from the hypothetic conditions of ray theory, so it does not include the wave natures completely.

目前通常采用的抛物型方程，也是在射线理论的假设条件推导的。所以，其波动性质也是不完全的。

youdao

In this paper, we consider singularity perturbed problem for a kind of quasilinear elliptic-parabolic type equation with nonlinear boundary value conditions.

本文研究一类拟线性椭圆—抛物型方程，具有非线性边值条件的奇异摄动问题。

youdao

Every type of business can incorporate this equation into their pricing module.

任何类型的公司都可以在自己的定价政策中加入这个等式。

youdao

Earlier mathematicians had concentrated on one type of equation at a time.

ECONOMIST: The history of mathematics

If it goes well and we have the right type of product for the equation, we will obviously do more if the numbers allow me to.

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