有效公式

Secondly, in the research of fuzzy clustering methods, we gave out several useful formulae and an improved fuzzy transitive closure method according to the degrees of influence of various pyrolysis parameters. We also brought up a modified FCM algorithm according to the different functions of the samples.

其次，在对基于模糊聚类的识别方法研究中，根据各种热解参数在油气层预测中的影响程度，给出了构造模糊相似矩阵的几个有用的公式，以及改进的模糊聚类传递闭包法；根据每个样本点对分类的不同作用，提出了一种改进的模糊C均值算法；试验结果表明，这两种方法都可以有效地提高分类精度。

Make sure you entered a valid date in the formula.

请确认在公式中输入了有效的日期。

The 3dB formula is valid for headphones and for loudspeakers.

这个3dB公式对耳机和喇叭同样有效。

The wind chill temperature (often popularly called the wind chill factor ) is always lower than the air temperature for values where the wind chill formula is valid.

在风寒温度总是比空气温度低的价值观如风寒公式是有效的。

The use of the formula for calculating the grain diameter indensimeter method prescribed in "Standard for soil test method" GB/T 50123—1999 is limited to the small global grains with low velocity in a layer flow considering only the viscous resistance and effective gravity.

GB/T50123—1999《土工试验方法标准》中采用密度计法进行颗粒分析时，土粒粒径计算公式是在层流条件下，对低速运动的微小球形颗粒仅考虑介质粘性阻力和有效重力条件下导出的。

Chapter 1 is a brief introduction on the significance of millimeter wave multi-frequency source, its development level at home and abroad, and the main contents of this thesis.

第二章分析了微带线的基本特性，介绍了它的有效介电常数和特性阻抗的设计公式，并对微带不连续性及平行耦合微带线进行分析。

Discharge of disinfected wastewater in recipient aquatic systems: fate of allochthonous bacterial and autochthonous protozoa populations.

在本试验条件下得到了标准消毒条件下（温度20°C，消毒时间30min，pH值为7.0）有效氯投量为10mg/L和50mg/L时，峰点前加氯消毒后污水的急性毒性增量（以Zn2+浓度表示）预测公式：y=0.7179x-0.0195，y=2.915x+1.0125（其中y为消毒后污水的急性毒性增量，x为污水的UV254与NH3-N的比值）。

It can be used to measure different kinds of the ammunition parameters,such as the center of mass,the centroidal deviation,the moment of inertia,the product of inertia,the dynamic unbalance and etc.

可以用来测量质心位置、质偏、转动惯量、惯性积、动不平衡度等多种参数，同时推导了相应的计算公式，并利用样机进行了实际测量，测量结果表明该方法是有效和可行的，且具有快速、高效、高精度等特点。

The junction technique of composite plastic pipe was researched, and the application of electrofusion welding in junction technique was discussed in detail.

对复合塑料管的连接技术进行了研究，尤其对连接技术中电熔熔接的应用做了详细的论述，提出了电熔熔接时恒压及动态过程控制的方法和控制的参数，推导出了电熔熔接电压的计算公式，有效解决了接头连接施工中存在的问题。

An analysis is made in the paper, on the forces acted on particles on screen surface, from which the formular for calculation of screen mesh blinding particles is derived.

文章对振动筛筛面上物料颗料受力情况进行了分析，推导出了堵孔颗粒的计算公式，提出了减少堵孔颗粒的有效方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。