A reasonable computer model of the high-speed train nose shape which is a complex space surface is the base of performing related designs, performance analysis & calculations and realizing CAD/CAM.
高速列车头部外形是形状复杂的空间曲面,对其进行合理的计算机模型表达是进行相关设计、性能分析与计算以及实现CAD/CAM的基础。
参考来源 - 高速列车头部外形参数化CAD系统研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Aerodynamic contour of high speed train mainly means its nose shape.
高速列车的气动外形主要是头部的气动外形。
Angle of attack and nose shape of bodies are key factors that asymmetric vortex occurs over slender bodies.
迎角、旋成体的外形，尤其是头部的几何形状是细长前体出现非对称涡的关键因素。
The nose shape of high speed train's power car has great influence on the aerodynamic performance of high speed train.
高速列车动车头部外形对高速列车气动性能有很大影响。
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