The results show that the typical appearance of worn audio heads is scratch mark. The wear mechanism of the heads is mainly micro-cutting.

结果表明，磁头磨损的典型形貌特征为划痕，磨损机理以微切削为主。

youdao

Around the same time, in early 2004, Mark had a similar "itch to scratch" and he started the Spring.NET project.

大约在同一时间，在2004年的早期，Mark经历了相似的“寻找历程”，从而开始了Spring.NET项目的开发。

youdao

Around the same time, in early 2004, Mark had a similar "itch to scratch" and he started the Spring.NET project.

大约在同一时间，在2004年的早期，Mark经历了相似的“寻找历程”，从而开始了Spring.NET项目的开发。

youdao