| 单词 | 埋头孔 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔countersink〕A hole with the top part enlarged so that the head of a screw or bolt will lie flush with or below the surface.埋头孔：顶部扩大的孔，为使钻或螺栓的头与地面相平或在地面以下美国传统〔countersink〕To drive (a screw or bolt) into a countersink.将钻或螺栓置入埋头孔美国传统〔countersink〕To make a countersink on or in.在…上或…内造埋头孔美国传统 |
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