轨道几何线形测量 track geometry measurement
跟踪曲线几何形状 pursuit course geometry
线状几何形状的抽象类 Curve
线状几何外形的抽象类 Curve
Then,the integral method was used to calculate vehicle’s pollution emission on speed shifting section of ramp. The calculated method of vehicle’s pollution emission of interchange based on geometric alignment was put forward and it was verified by practical example.
以机动车在匝道上的行驶速度为纽带,通过建立车速与匝道长度、机动车污染排放与车速之间的关系,推导出了机动车污染排放与匝道长度的关系,利用积分的方法对匝道变速运动段机动车污染排放进行了计算,提出了基于几何线形的道路立交处机动车污染排放计算方法,并通过算例进行了验证。
参考来源 - 基于几何线形的道路立交处机动车污染排放计算·2,447,543篇论文数据，部分数据来源于NoteExpress
莱茵环的几何线形是斡旋于四方形和圆形之间的扁平状超椭圆形。
The geometry of the RheinRing is based on the mathematical model of a super ellipse, a flattened ellipse that mediates between thesquare and the round forms.
计算得到成桥状态的几何线形控制点标高与设计标高相比，误差很小。
The error between the calculated values and the design ones of elevations at controlling points in the designated status is very small.
CFST拱桥施工安全控制主要从结构几何线形、内力和结构的稳定三方面进行分析控制。
The analysis of construction safety control of CFST arch is mainly from the three aspects which are geometric linear, internal force and the stability of structure.
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