countersinks

['kauntə.siŋk]

[ countersinks ]

v. 张扪孔口, 钻孔装埋, 打埋头孔
n. 皿锥, 埋头孔, 暗钉眼

词形变化:

动词过去式: countersunk | 动词过去分词: countersunk | 动词现在分词: countersinking | 动词第三人称单数: countersinks |