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本文主要阐述运用手工操作石灰粉画跑道线的能力，探讨用拉沟划迹、虚点划线等简易方法画弯道分道线的原理与技巧以及画跑道线的有效教学方法。
This paper mainly elaborates the ability of drawing limestone to draw the track line by hand and discusses the principle and technique of drawing the lane dividing line with simple methods such as drawing ditch and dashed-dotted line, as well as the effective teaching methods for drawing the line of the running track.