锪孔 huōkǒng countersink or counterbore Definitions Defs Origin 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
