大圆弧长计算球面两点之间的最短距离。
The great-circle distance calculates the shortest distance between any two points on the surface of a sphere.
大圆弧玻璃驾驶室和发动机整体罩壳，形成独特的流线外观造型风格。
Unique streamline shape appearance with circle arc windscreen and curve engine hood for excellence sight.
针对大圆弧形机壳，设计了一次折弯成形结构模具，减少工序，降低成本。
Aimed at large arc shape frame, the die with once bending forming structure is designed, the working procedure is reduced, and the costs are lowed as well.
在其他情况下使用球面模型，所使用的主要距离计算为大圆弧长(参见参考资料)。
In other cases, a spherical model is used, and the primary distance calculation used is the great-circle distance (see Resources).
对此进一步分析，通过增大圆弧半径以及采取应力流分流的办法，最终解决这些应力集中问题。
By means of further analysis, solves the problem of the concentrated stress with magnifying arc radius and dividing the stress flow.
但是为了实现本文的目的，我将使用平面地球模型和大圆弧长距离来演示距离，其他方法留给读者探索。
For the purposes of this article, I will demonstrate distances using the flat-Earth model and the great-circle distance and leave the rest to you to explore.
从分析实用等距曲线的构成入手，推导出了实用三弧段等距型面的大圆弧半径计算公式和型面曲线的数学模型。
Based on analyzing the structure of practicable isometric profile, the radius calculating formula of bigger arc and the mathematical model of practicable isometric-trilateral profile are reduced.
有时，为了简化作图，往往采用以大圆柱半径为半径的圆弧代替双曲线近似画出。
In order to simplify the procedure, we use the arc which radius is the radius of the larger circular cylinder to replace the hyperbola.
有时，为了简化作图，往往采用以大圆柱半径为半径的圆弧代替双曲线近似画出。
In order to simplify the procedure, we use the arc which radius is the radius of the larger circular cylinder to replace the hyperbola.
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