perforation
.pә:fә'reiʃәn
基本解释
n. 穿孔, 孔眼, 贯穿, 贯通
[化] 穿透
英文释义
n. a line of small holes for tearing at a particular place
n. a hole made in something
n. the act of punching a hole (especially a row of holes as for ease of separation)
词形变化
上一个单词：perforating wound
下一个单词：perforation rate