tool marks meaning in English

刀痕
工具痕

The information management code in criminal offense - part 42 : tool marks classified and code
刑事犯罪信息管理代码.第42部分:工具痕迹分类和代码
On these mainframes , tools mark the end of a line with a character that is not recognized as such by xml 1 . 0
在这类主机上，工具使用xml 1 . 0不能识别的字符（ nel ）标记行尾。
Cleaners , auto accessories , zipper head , everydays , operation tools , spectacle frame marking , knife tools marking , clock and watch marking
卫生洁具、汽车零件、首饰、生活用品、手术器械、眼架标记、刀具标记、钟表标记等。
This paper first introduced a new method of direct tool marking ( take advantages of direct laser marking and 2d barcode identification technology ) to overcome the difficulties in the field of tool marking and information tracking
摘要针对目前刀具标识与信息追踪方面存在的不足，采用直接激光标刻和二维条码技术实现了刀具的直接标识。