“天然排水--自流排水”概念、定义、翻译-科学时代

单词	天然排水--自流排水
释义	水利水电词汇手册 free-draining 自流排水，天然排水
随便看	film library film line film lubrication bearing film magnetic head material film maker film make-up film-making filmmaking film master film master film membrane film memory film-metering device film music film negative film noir filmography filmography filmology filmology film opaque filmorex system film pack film packing film pick-up

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。

free-draining