实用

Apply the thought of differential and integral calculus to the problem of global optimization, imitate the algorithm of digital approximation of definite integral and construct a category of algorithms that can solve global optimization with great brevity and utility.

把微积分的基本思想应用到最优化问题中，仿照定积分的数值逼近算法构造出一类简洁实用的全局优化算法-积分选择算法。

The Gompertz model is derived based on differential equation of growth-type curve, in order to get a method for prediction of production rate, accumulative production rate, recoverable oil, peak annual production rate and corresponding time of solution gas in oilfield, and determine the valid applicable range in field.

基于增长类型曲线微分方程，对实用的Gompertz模型进行了推导，得出了预测油藏溶解气产量、累积产量、可采储量、最高年产量及其对应时间的方法，并在矿场应用分析基础上确定了该模型的有效适用范围。

It is well known that the method of separation of variables is an efficient way to solve linear partial differential equation.

众所周知，分离变量的方法是研究线性偏微分方程的最实用、最有效的工具之一。

So, a new method for calculating the seabed slope angle called the differential method is put forward.

为此，针对单波束测量提出了一种实用的海底倾斜角差分算法。

Utility operator of the calculus and differential operator, and so in some respects with the easy to learn, saving hours and easy to remember and so on.

实用的微积分算子及差分算子等在某些方面具有易教易学、节省课时、容易记忆等特点。

Therefore, it is of great theoretical and practical value to research functional differential equations.

因此对泛函微分方程的研究，不但有重要的理论价值，而且有实用价值。

Therefore,it is of great theoretical and practicalvalue to research functional differential equations.

因此对泛函微分方程的研究，不但有重要的理论价值，而且有实用价值。

Establishing new model for prediction of diffusivity is now a key and hot research area.

近年来，开发高效实用的扩散系数预测模型成了迁移研究的一个重点方向。

Now I have more than 10 of the "practical Digest", and I very much enjoy this book.

现在我已经有十多本《实用文摘》了，我非常喜欢这本书。

However, the conventional and applied frequency hopping radios are all designed for the analog or digital speech transmission.

但是传统的和实用的战术跳频电台都是为模拟话或数字话的传输而设计的。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。