“water conservancy in ancient Kaifeng city”的概念、定义、翻译、参考文献-科学参考

单词	water conservancy in ancient Kaifeng city
释义	water conservancy in ancient Kaifeng city Encyclopedia 工学〔中国古代城市水利〕释 water conservancy in ancient Kaifeng city古都开封水利古代开封市的航运、防洪、供水、灌溉等水利事业。
随便看	epeirogenesis ependyma ependymal cell epenthesis e-perfect number Ep galaxy E.P.Grebenka ephapse ephaptic transmission E-pH diagram ephedra ephedra family ephedra root ephedrine ephemeral ephemeral active region ephemeral plant ephemeral range ephemeral region ephemerides ephemeris ephemeris astronomy ephemeris day ephemeris error ephemeris errors

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。