“roof hole”概念、定义、翻译-科学时代

单词	roof hole
释义	工程与技术词汇手册 roof hole 顶板炮孔；上向炮孔
随便看	assembly program assembly system assembly test assembly time assembly time assembly training assembly unit assembly unit assent ASSERT assertion assertion assertion assertion logic assertion sign assertion system A assertive assertiveness assertiveness assertiveness training assertiveness training assertoric judgement assertoric proposition assert signal assess

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

roof hole