“system of unified and fixed state purchase”的概念、定义、翻译、参考文献-科学参考

单词	system of unified and fixed state purchase
释义	system of unified and fixed state purchase Encyclopedia 管理学农业经济政策释 system of unified and fixed state purchase统购派购制度中国在商品经济不发达的情况下，实施对粮食、棉花、油料等重要商品由国家统一收购（统购），对重要农副产品，向农业生产单位和农民分派交售任务（派购）的法律规范的总称。
随便看	bio-diversity conservation in China biodiversity decline in China Biodiversity Heritage Library biodiversity hotspots biodiversity index of aquatic organism Biodiversity Indicators Partnership biodiversity informatics biodiversity information standards Biodiversity International biodiversity inventory Biodiversity loss in the invaded range biodiversity monitoring biodiversity of scenic regions biodiversity protection law biodiversity use in field scale biodiversity value biodiversity voucher Biodiversity–Ecosystem Functioning Experiment China biodosimetry biodrainage bioeffect bioelastomer bioelectrical impedance analysis bioelectricity bioelectric phenomenon

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。