单词 | countersink |
释义 | Word Frequency countersink(ˈkaʊntəˌsɪŋk) verbWord forms: -sinks, -sinking, -sank or -sunk (transitive) 1. to enlarge the upper part of (a hole) in timber, metal, etc, so that the head of a bolt or screw can be sunk below the surface 2. to drive (a screw) or sink (a bolt) into such an enlarged hole noun 3. Also called: countersink bit a tool for countersinking 4. a countersunk depression or hole |
随便看 |
英语词典包含233703条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。