请输入您要查询的英文单词：
单词
tracing
释义
tracing
NOUN
/ˈtreɪsɪŋ/
1
C
a copy made by tracing 摹图；映描图
2
C/U
medical
a process in which a substance is passed through someone’ s body to show where a problem is 显迹
3
C
technical
a trace made on a screen or piece of paper （屏幕或纸张上显示的）描记图，描记线