“区域旱情等级”的概念、定义、翻译、参考文献-科学参考

单词	区域旱情等级
释义	区域旱情等级 Encyclopedia 工学〔标准和制度〕释 Classification of Regional Drought Severity《区域旱情等级》中国规范全国、省（自治区、直辖市）、地（市、州、盟）和县（区、旗）四级行政区旱情评估工作的国家标准。
随便看	difference cocycle difference coefficient difference cokernel difference correction difference-cover difference differential equation difference-differential equation difference distribution difference element difference equation difference family difference formula difference Fourier synthesis difference frequency difference frequency distortion difference-frequency distortion difference game difference group difference hierarchy difference interval difference kernel difference matrix difference method difference module difference Monte Carlo method

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。