“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	number of partitions number of permutations number of person-days number of places number of plate number of R & D personnel number of reading days per week number of reeling with confine raw silk size number of reorderings number of repetitions number of replications number of rows number of runs number of samples number of scans number of scans (NS) number of science and technology archives number of search number of share number of sheets number of significant digit number of solutions number of stages number of states number of survivors

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。