Read Edit View history Discussion 锪孔 huōkǒng countersink or counterbore Origin Definitions Defs Strokes Stroke Words Sentences Sents 锪孔 鍃孔 huōkǒng countersink or counterbore an enlargement at the outer end of a drilled hole, either funnel-shaped or cylindrical
锪孔 鍃孔 huōkǒng countersink or counterbore an enlargement at the outer end of a drilled hole, either funnel-shaped or cylindrical