The status of polyculture and rotational culture in Chinese marine life is reviewed. Some successful experience is summ......

本文从行政管理的角度,探讨了北京大学医学部“以学生为本”的管理实践,具体涉及了四个方面的内容:为学生配备学业精深、素质优良......

As a significant issue, mining cities, especially the resource-exhausted mining cities have already been given intensive......

本文分析了惯性导航系统的优点,将其应用到铁饼运动数据分析系统中,并采用四元素法求解铁饼姿态。另外,在典型圆锥运动环境下,进行......

溯源长岛鲍鱼增养殖历史,分析产业现状,从种质、栖息地生境、产业化和品牌化建设四个方面查摆制约因素,并针对性提出政产学研金协......