“grassland reclamation”的概念、定义、翻译、参考文献-科学参考

单词	grassland reclamation
释义	grassland reclamation Encyclopedia 农学中国草业史释 grassland reclamation草地开垦人为采取工程措施、生物措施或综合措施开发草地资源，使其改造成为以种植、养殖为主的农用土地类型的社会生产实践活动。
随便看	median citation age median control chart Median effective dose median effective dose median eminence median envelope median error median filter median lethal concentration median lethal concentration for fishery organisms median lethal dose median lethal dose (LD_{50}) median lethal dose, LD50 median line median magnitude median of a distribution median of a trapezoid median of a triangle median orbit median particle diameter median percentage method median period median photoelectric magnitude median photographic magnitude median photovisual magnitude

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。