“河西地区农业史”的概念、定义、翻译、参考文献-科学参考

单词	河西地区农业史
释义	河西地区农业史 Encyclopedia 理学中国农业史释 agriculture history in Hexi region河西地区农业史中国黄河以西天然走廊地区的农业发展历史。
随便看	mean tangent diameter mean term mean term of proportion mean-tidal system mean tide mean time mean time between failure mean time between failures mean time between failures, MTBF mean time between failures，MTBF mean-time clock mean time to dangerous failure mean time to failure mean time to failure, MTTF mean time to first failure mean time to repair mean time to repair, MTTR mean-time type time-signal mean tone temperament mean transmission rate mean type mean unbiased estimator mean value mean-value characterization mean valued function

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。