...some other abstract notation system like a computer language. …一些如计算机语言的其它抽象符号系统。
He recognizes enough notation to be able to follow a score. 他认识足够多的音乐符号,能看懂乐谱。
He believes that as far back as 30,000 B.C., hunters may have used a system of notation, engraved on bone and stone, to mark phases of the Moon. 他认为,远在公元前30,000年以前,猎人可能会用一套刻在骨头和石头上的符号系统来标记月相。