穿孔 chuānkǒng perforate Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: perforate All meanings 2 chuānkǒng 2 perforate 1perforation 1 1 sentence for 穿孔 (chuānkǒng — perforate) 这台机器可以自动在纸带上穿孔。 zhè tái jīqì kěyǐ zìdòng zài zhǐdài shàng chuānkǒng. This machine can automatically punch holes in the paper tape. Source: Dong Chinese Dictionary