| 释义 |
trac·ing AHD[trāʹsĭng] D.J.[ˈtreɪsɪŋ]K.K.[ˈtresɪŋ]n.（名词）- A reproduction made by superimposing a transparent sheet and copying the lines of the original on it.描摹、映写：用一张透明纸张覆盖并在其上描画原来的线条而制成的复制品
- A graphic record made by a recording instrument, such as a cardiograph or seismograph.自动仪表描记图象：由记录仪器，如心电图仪或地震仪得出的图表记录
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