球面三角公式繁杂，学生在实际运用时感到困难。
Students may be confronted with difficulties in the application of complicated formulae of Spherical Trigonometry.
CR118模型的正面刻有一个分数到十进制的转换图和三角比公式。
Model CR118 has a Fraction to Decimal Conversion Chart and Trigonometric Ratio Equations etched on the front side.
虽然这些计算无非是最基本的三角形和代数计算，但是所使用的公式非常复杂。
Although these calculations are nothing more than basic trigonometry and algebra, the formulas are very complicated.
这就是空间三角形的面积公式。
That's the formula we've seen for the area of a triangle in space.
Blackburn教授的公式通过对车的弧度和转角能力画圈，利用圆心来设置一个直角三角形。
Blackburn's formula does this by sketching the arc of your car's turning capability into a full circle, then using the center of the circle to create the right-angle triangles Pythagoras loved.
本文推导信号和噪声为三角形分布的信道的信息传输量计算公式。
In this paper, the formula of transinformation of channels in which the distributions of signal and noise are triangular is derived.
介绍了三角活塞旋转发动机的工作原理，提出了气缸型线的创成方法和计算公式。
This paper introduces the operating principles of the triangle piston circulating engine and puts forward the methods to create model line of cylinder and calculating formula.
利用三角函数作为一种近似方法，对单摆的动力学方程进行了简化，给出了大角度条件下单摆运动的周期的近似公式。
As an approximate method, with the trigonometric function, the simple pendulum dynamical equation is simplified, and the approximate formula for the period of simple pendulum movement is presented.
采用埃夫琴晶胞推导了计算二维三角离子晶体的马德隆常数的通项公式。
By Evjen crystal cell, the calculation formula about Madelung constant for the two-dimensional trigonal ion crystal was deduced.
三角洲量单位权方差的先验估值一般用经典菲列罗公式计算。
A prior estimate of unit weight variance is usually calculated by the classicalFerrelo's formula.
从双口网络的Z参数、Y参数出发，推导了星形、三角形网络转换在正弦稳态电路中的转换公式，引出其应用条件。
In this paper, starting from the conversion of Z parameters and Y parameters of two-port parameters, we deduce the formulas of wye-delta network transformation in sinusoidal steady-state.
利用辛变换条件得到了一些新的切比雪夫多项式公式、三角恒等式和双曲恒等式。
In this paper by using the symplectic transformation condition, some new formulas including Chebyshev Polynomial, trigonometric identity, hyperbolic identity were obtained.
通过分析该算法的几何原理，构建三角形面片的权值计算公式。
Firstly, the weight's calculation formula of triangle patches is constructed by analyzing its geometric theory.
本文利用内潜奇点片的概念，提出了二次分布源强的三角形单元，进行绕任意三维物体的势流的计算，并得到了计算所需要的一系列积分公式。
This paper presents a method for evaluating the flow about an arbitrary three-dimensional body using the submerged patches of triangular elements with quadratic variation of source strength.
本文推导了在任意载荷激励下直角三角形板单元局部动力效应修正公式。
In this paper, the local dynamic effect modification formulation of rightangled triangle plate element under arbitrary excitation is presented.
摘要把紧密相连的圆环构成的圆盘以渐开线展开成等面积的直角三角形，得出了较为直观的由周长和半径表示的圆面积公式。
The disk, which is composed of continuous annuluses, can expand equivalent trangle by asymptotice line. We can obtain the circular area which is visually expressed by circumference and radius.
本文给出了上(下)三角形矩阵的一个求逆公式。
This article gives a Formula for finding inverse matrices of upper (down) triangular matrix.
推导出用三顶点的测地坐标计算地球椭球面上三角形面积的公式。
The formula for area of triangle on ellipsoid by means of geodesic coordinate is derived in this paper.
在应力偏张量主值三角函数解的基础上，推导了应力空间内主应力和主方向的通用解析解公式。
Based on the stress partial tensor's trigonometric function answer, the main stress and main direction are established in parsed currency formula, and some special answers and examples are discussed.
文中导出了正方排列和正三角梭锥（正四面体）排列两种型式的三维（立体）声系统作为这组公式应用之例。
At last, the cases of three dimensional surrounding sound systems with cube array and triangular pyramid array models by using these formulas are illustrated for example in this paper.
用倍角公式可将该三角函数方程转化成一个四次代数方程，然后用求根公式直接求出解析解。
Double Angle formula can transform the circular function equation to a biquadratic algebraic equation, and the analysis solution can be solved by extract equation directly.
应用两个向量法相关公式探讨了三角形重心、垂心、外心以及内心之间的距离公式。
This paper explores into the distance formula between median point, orthocenter, circumcenter and inner point of triangle by means of two related formulas of vector methods.
应用球面三角法和方向余弦矩阵法分别推导出双轴陀螺平台的支架误差公式，发现由这两种方法推导出来的公式计算结果是一致的。
Methods of spherical trigonometry and direction cosine matrix were applied respectively to derive the bracket error, and the two methods had the same error formula and the same calculation results.
本文采用导向联系三角形观测方法，导出了矿井定向角度的误差计算公式。
This paper educed the error calculation formula of the mine directional Angle by using the method of guidance relation connected with the triangle observation.
论述了直角三角形堰式明渠流量计算问题，提出了一种高精度流量计算经验公式。
The calculation of right angled triangle weir-type open channel flowmeter is described. A high precision experiential flow calculating formula is given.
本文考虑了非对称三角形螺纹的螺距偏差和牙侧角偏差的各种组合对作用中径的共同影响，运用了包容图位移法，分析和推导出非对称螺纹作用中径的精确计算公式。
By the use of the displacing enveloping drawing method, a set of exact formulae for calculating the virtual pitch diameter is deduced and verified by measured data.
想要记住函数和公式的焦虑无时不在，当我用刀斜切一个烤好的奶酪三明治时，会忍不住想去计算直角三角形的斜边长度。
Anxiety over functions and formulas is ever-present. Slicing a grilled-cheese sandwich diagonally, I find myself pondering the length of the hypotenuse.
推导了轴对称线性三角形元的影响系数矩阵和输入向量公式；
The influence coefficient matrix of the linear axisymmetric triangular element and the input vector expression are derived.
量块组尺寸计算公式不含三角函数，计算简便、结果精确，特别适合车间现场使用。
As no trigonometric function in the formula results in easy and accurate calculation result, it is especially suitable for workshop applications.
分析了单向光电三角高程测量的误差来源，在此基础上推导了最佳测站位置离测点的平距公式。
Based on the error resource analysis in one-way photoelectric triangulated heigh survey, the horizontal distance equation is drawn for optimal station away from survey point.
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