The wear characteristics of tapes are scratch mark and crack.
磁带磨损特征为划痕和裂纹。
Scratch - a mark that is found on the wafer surface.
擦伤-晶圆片表面的痕迹。
The first reason cats scratch is to mark territory.
第一个原因是猫从头纪念领土。
He starts from scratch and strives to leave his mark on history.
需要查一下历史的说法，但他并非阴险狡诈，而是白手起家，力图名垂青史。
He starts from scratch and strives to leave his mark on history.
需要查一下历史的说法，但他并非阴险狡诈，而是白手起家，力图名垂青史。
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