The earth crosses the tracks of certain comets.

地球穿过某些彗星的迹线。

For the future situation after stop line changed，the line-clothoid-clothoid-line model is presented.

对于停车线位置改变后的未来状态，给出了直线—回旋线—回旋线—直线组合的左转车辆行驶迹。

A nontracking third camera is placed in centerfield and is only used for setting the height of the strike zone.

第三台不用来迹的摄影机架设在中外野，唯一的目的是设定好球带的高度。

The gas-solid two-phase flow in a semiround-pipe inertia separator is simulated with RSM model to the gas phase and DPM model to solid phase.

采用数值方法对半圆管惯性离器内的两流动进行了拟,连续、颗粒、颗粒迹计算别采用雷诺应力(RSM)、离散(DPM)和随机道。

The square regulation graded index fiber is considered to have fairly good dispersion property because the near axle meridian light in the fiber may focalize automatically.

本文首先推导出平方律渐变光纤中,近轴子午光线的迹方程。

Because arc length of trajectory is regarded as the variant in geodesics based method, it possesses the advantages of non-time based trajectory planning at the same time.

本文的基于测地线的迹规划是以迹弧长作为参考变量的，因此它还具有非时间参考的机器人迹规划的优点。

This method make use of given error to control the section length and to removal superfluous type value points.The method can reduce working code length to a minimum without overgauge.

在给定的公差下,根据刀位点迹的程序段割误差确定程序段的大小,剔除多余的值点,保证加工指令的长度不超出CNC系统提供给用户的内存空间。

The exterior element of the product almost by complete oversight, do not have any hyperbole to be decorated flightily, what all work state it seems that is a kind of reflection contrail.

产品的外观因素几乎被完全忽略，没有任何夸张浮躁的修饰，所有的作品似乎陈述的都是一种思考的迹。