*['kauntәsiŋk]\nvt. 钻孔装埋, 打埋头孔于\nn. 埋头孔, 锥口钻\n【机】 锥坑

countersink

countersink pinhole

countersink【机】;countersink drill【机】

Countersink

countersink（core drill）

countersink for wood working

countersink

countersink【机】