transitive. To enlarge the upper part of (a hole or cavity), usually into a conical form, to receive the head of a screw, bolt, etc.; to bevel the…
| 单词 | θ210581 |
| 释义 | society > occupation and work > industry > working with tools or equipment > fastening > fasten [verb (transitive)] > with screws > enlarge (hole) to receive screw-head (3) countersink1831 transitive. To enlarge the upper part of (a hole or cavity), usually into a conical form, to receive the head of a screw, bolt, etc.; to bevel the… counterbore1890 transitive. To enlarge (the upper part of a cylindrical hole or cavity) to take the head of a screw. Also absol. Cf. countersink, v. 1. Subcategories:— sink screw-head into hole (1) |
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