tracing

['treisiŋ]

n.追踪, 描图
动词trace的现在分词

例句与用法：

Relating to, based on, or tracing ancestral descent through the paternal line.

父系的与父系血统有关的; 以父亲血统为基础的，按父方血统追溯的族系的

He traces his descent back to an old norman family.

他追踪自己的世系上溯至一个古老的诺曼家族。

An electrically produced graph or tracing.

电示图以电制作的图表或映描图

Equipment used to produce such a graph or tracing in facsimile transmission.

传真电报机传真通信中用以制作这样的图表或映描图的设备

详细释义：

n.

1. 追踪; 追查

2. 描绘; 映绘

3. 摹图