countersinks的中文意思、音标与词形变化

v. 钻孔装埋, 打埋头孔( countersink的第三人称单数 )

n a hole (usually in wood) with the top part enlarged so that a screw or bolt will fit into it and lie below the surface n a bit for enlarging the upper part of a hole v insert (a nail or screw below the surface, as into a countersink)