“人孔”概念、定义、翻译-科学时代

单词	人孔
释义	航空航天词汇手册 manhole 人孔
随便看	library benefit library bibliographic reference Library Bill of Rights library binding library budget library building design library card library card library career library catalogue library census library circulation problem library circulation statistical norm library classification library classification library classification systems library clerk library code library collection library committee library community library compendium library computerization library consciousness library consortium

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。

manhole