试凑法

The policy optimization problems in a system dynamics model, however, still follow the "cut-and-try" method, which does not work well.

但系统动力学的政策优化问题还是沿用"试凑法"，一直没能得到很好的解决。

Experimental-test is one of the traditional methods to choose the big extension spring, which is too trivial, too long design cycle, and not effective.

传统的大拉簧选取方法多为盲目试凑法，该法设计过程烦琐，设计周期过长，效果并不理想。

Factorization of this equation by trial and error is not possible.

用试凑法对这个方程进行因式分解是不可能奏效的。

This program is developed based on the platform of Delphi 7.0,and its mathematical model is hypergeometric distribution.

该程序在Delphi7.0开发平台下编写，数学模型为超几何分布，采用试凑法逐次逼近。

The regulator parameter is determined generally by calculating again and again through the method of trial. There exist some problems such as complicated calculation and insufficient obviousness of the result .

调节器参数的整定一般都是通过试凑法反复运算确定，普遍存在计算繁杂及检验结果不够明显的问题。

The rocker arm and the connecting rod are important parts of the loader's working device.

摇臂和连杆是装载机工作装置的重要部分，对它们的设计一般用传统的类比法和试凑法。

Also, for improving the disadvantages of the original algorithm, the self-searching PID control algorithm is developed based on the PC.

针对试验试凑法控制参数寻找困难、过程繁琐、开发周期长等缺点，本文开发了PID控制参数自搜索算法，初步实现了控制参数自主搜索的功能。

The design of the cylindrical spiral drawing spring without original pull always adopts tentative method.

摘要 无初拉力圆柱螺旋拉伸弹簧的设计通常采用试凑法。

The widely used method are trial solution and the least square method. They need huge calculations and their results are less reliable. A new kind of intelligent genetic algorithm was employed to get the optimal parameter. Using it in the（ model has proved its reliability for production forecast of oilfield.

各种油气田产量预报模型的应用关键在于参数估计，常规参数估计方法为试凑法和最小二乘法，工作量大，可靠性差，所以引入了一种新型遗传算法求取参数最优估计值，并通过遗传算法在Γ模型中的应用实例说明了该方法在油气产量预报中的可行性。

The process calculation of the shell and tube steam heater was carried out with the method of numerical analysis method.

将数值分析方法应用于管壳式蒸汽加热器的工艺计算，很好地解决了试凑法的盲目性和计算工作繁重的问题，并在此基础上用VisualBasic语言开发了管壳式蒸汽加热器工艺CAD软件。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。