“农业历史”的概念、定义、翻译、参考文献-科学参考

单词	农业历史
释义	农业历史 Encyclopedia 理学〔农业历史研究刊物〕释 Agricultural history《农业历史》美国“农业历史学会”发行的学术刊物，创办于1927年。
随便看	non-native fishery species Nonna Victorovna Mordyukova nonnegative non negative characteristic form non-negative characteristic form nonnegative characteristic form nonnegative combination nonnegative definite nonnegative definite kernel nonnegative definite matrix nonnegative definiteness nonnegative definite quadratic estimate non-negative definite quadratic estimator nonnegative divisor nonnegative element nonnegative function nonnegative integer nonnegative integral kernel nonnegative manifold nonnegative matrix non-negative matrix factorization nonnegative measure nonnegative number nonnegative operator nonnegative orthant

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。