详细解释:n. 描摹, 描图, 追踪
【计】 跟踪
【医】 示踪, 追踪; 描记法
英语解释：
名词 tracing:
the act of drawing a plan or diagram or outlinea drawing created by superimposing a semitransparent sheet of paper on the original image and copying on it the lines of the original image同义词：trace