(n.) Indentation; an impression like that made by a tooth.
格罗夫斯整理
双语例句
As electro-chemical action takes effect much more rapidly than the mechanical movement of an indenting point, Mr. Bain's telegraph could work much faster than Mr. Morse's. 弗雷德里克·科利尔·贝克维尔.伟大的事实.
It consisted of a metallic cylinder having a helical indenting groove cut upon it from end to end. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.