1·Susan Trice from the University of Maryland Cooperative Extension Service says cabbage takes about sixty to ninety days to grow.
马里兰大学的合作推广服务部大学的苏珊说：“卷心菜大概要生长60至90天。”
2·The department, through its cooperative state research, education and extension service, has been supporting a project in Michigan. That states has a short growing season.
农业部，通过其合作的州立研究、教育和推广服务机构，已经在密歇根州获得了项目支持。该的种植季节短。
3·Aiming at the stagnation exists in the cooperative particle swarm optimization, presents a new kind of the cooperative particle swarm optimization algorithm based on particles spatial extension.
针对协同微粒群优化存在的停滞现象，提出了一种新的基于粒子空间扩展的协同微粒群优化算法。
4·OBJECTIVE Using the theory of extension to evaluate the effect of new rural cooperative medical system.
目的利用可拓学理论评价新型农村合作医疗实施效果。
5·London moxa poem extension shoes with rich strength, reasonable price and good service to many enterprises established long-term cooperative relations.
伦敦艾诗拓鞋业以雄厚的实力、合理的价格、优良的服务与多家企业建立了长期的合作关系。