Antihydrogen formation in the laser-assisted positronium-antiproton collision is investigated in the first Born approximation.

在级玻恩近似下，研究了在激光辅助的电子偶素-反质子碰撞中的反氢合成。

This is the nearest approximation of cost that they can give us.

这是他们能够给我们的最接近的费用估价。

This is only a crude approximation of the actual conditions in the area.

这只是对这地区实际情况的粗略估计。

We do not have the true figures so we will have to make some approximations.

我们没有真实的数字，因此只能作些粗略的估计。

An approximation algorithm is presented for minimizing a nondecreasing supermodular set function, and its performance guarantee is probed.

摘要给出了求解类上模集函数最小值问题的种近似法，并讨论了所给法的性能保证。

The trackability limitation of current gradient algorithm is discussed.A new algorithm, named variable parameter gradient estimation algorithm with local polynomial approximation is proposed.

本文分析了梯度辨识法跟踪时变系统的缺点，提出了种新的基于局部多项式逼近的变参数梯度估计法。

The analytical solutions for the stead state equations of four wave mixing with an arbitrary complex coupling constant are given without the undepleted pump approximation.

在无泵浦非耗竭近似下，给出了复耦合系数为任意值时稳态四波混频耦合波方程组的解析解。

It adds time delay to the controlling system that can control the time delay system inerrably and overcome the shortcomings of the traditional approximation method.

该方法将时间滞后因子入系统的控制机制，可完全无误差的实现对时滞系统的控制，克服了传统近似法解决时滞所带来的误差问题。

To achieve such a rapid and low complexity of the distribution，and it proposes a semiregular mesh geometry coding related to the reconstruction of the mean square error of approximation.

为了实现这种快速和低复杂度的分配方法，提出了和半规则网格几何编码相关的重建均方误差的近似方法。

The best uniform approximation algorithm to approach the catenary suspension and the CAD system using this algorithm to design the catenarian dome of hot blast stove are described in the paper.

介绍了采用最佳致逼近法对悬链线进行逼近,以及运用此法进行热风炉悬链线拱顶设计的CAD）系统。

As mentioned above in the directional lights section, the rendering of shadows for directional lights is an approximation that allows us to use a single render to cover a largeish area with shadows.

你也可以使用着色语言作为技术的实现基础来处理阴影投射体和接收体的材质来实现更复杂的阴影法，比如实现支持投影的深度阴影贴图。