公式

And the formula is to induce non-acute trigonometrical function into acute trigonometrical function of a group of important tool if we want to be arbitrary trigonometrical function derive specific value.

而诱导公式是将非锐角三角函数转化为锐角三角函数的一组重要工具，只有这样我们才能将任意的三角函数值具体求出。

By means of uniting geometry with algebra, the arc length, tangent line, cotangent space and curvature of curve in four dimensional space are investigated, and the corresponding calculation formula in each cases are given.

用形数结合的观点研究了四维空间中曲线的弧长、切线、法空间和曲率问题，并给出了其计算公式。

This paper presents a new method——using mean radius of curvature to find the substitutive arc of Archimedes spiral,with which better precision can be obtained and the calculating formulas are very simple.

提出了一种用平均曲率半径法求阿基米德螺旋线的代用圆弧的新方法，其计算公式简单，并可得到较高的精度。

The flow properties of the polypropylene and polyethylene were studied using Archimedes spiral and square spiral melt fluidity test molds, which had the same shape of cross section but different cavity profiles, and then relationship between melt flow ratio and cavity profile was analyzed.

摘 要：对聚丙烯和聚乙烯 2种塑料在阿基米德螺旋线与方形螺旋线流动性测试模具中的流动性能进行研究，分析塑料流动比与型腔轮廓特征的关系；引入修正系数β，对流动比校核公式进行修正。

Spherometer ; Theory equation of sphere curvature radius ; Principle of Archimedes spiral.

球面曲率计；理论球径公式；阿基米德螺线原理

It is impossible to write a program without knowing algorithm. For example, to calculate the circumference and area of a circle, you should know the formulas "circumference＝2лr' and "area = 7лr2'.

不懂算法就不可能编写程序，例如，要计算圆的周长和面积，你要知道"圆周长＝27rr"和"圆面积＝，rr2"的公式。

The formula Πr is used to calculate the area of a circle.

pr 这个公式用於计算圆面积。

Based on the natural gamma log curve s of acid tuff and clay rocks of acid volcanic events,the author here queries the arguments that radioactive intensity of sedimentary strata will grow with the increasing argillaceous materials and that the natural gamma value and the empirical equation can be used to calculate contents of argillaceous materials.

根据酸性凝灰岩和酸性火山事件粘土岩的自然伽马测井曲线，对当前流传的"沉积岩层的放射性强度随泥质含量的增加而增高"的概念和用自然伽马值及经验公式求泥质含量提出质凝。

The erroneous Direct Linear Transformation algorithm of Argus system are also corrected in this study.

本研究中并修正Argus 观测系统中错误的直接线性转换公式。

He took little part in the affairs of the Council of Nicaea, but when he became Bishop of Alexandria in 328, he was to become the unremitting foe of Arius and Arianism and the unflagging champion of the Nicene formula.

他很少参与事务理事会的尼西亚，但是，当他成为主教亚历山德里亚，在328 ，他将是成为了不懈的敌人arius和arianism和锲而不舍的冠军的nicene公式。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。