“drought central China in 10th century”的概念、定义、翻译、参考文献-科学参考

单词	drought central China in 10th century
释义	drought central China in 10th century Encyclopedia 工学〔中国历史上重大的水旱灾害〕释 drought central China in 10th century10世纪中原大旱 10世纪，中国以中原地区为中心发生的一场持续3年的大旱灾。
随便看	singular cardinal number singular cardinal problem singular cardinals hypothesis singular cardinals hypothesis (SCH) singular case singular cell singular chain singular chain complex singular chain group singular circle singular cochain singular cochain complex singular cocycle singular coefficient singular cohomology singular cohomology group singular cohomology ring singular collineation singular complex singular component singular configuration singular congruence singular conic singular continued fraction singular control

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。