According to tests of colony formation days on plate and generation time determination, all strains were primary clustered into two groups: one is fast-growing rhizobium, the other is slow-growing rhizobium.
根据菌落形成时间和代时测定结果,将供试菌株初步划分为快生菌株和慢生菌株两种类型。
On the basis of the primary data about the distribution network development planning and the city map of construct and development of Xuchang county, the distribution network planning method based on GIS and Ant Colony Algorithm is studied.
本论文以许昌县城市电网发展规划的原始数据和城市建设发展规划图为依据,对基于GIS和蚁群算法的配电网网架优化方法进行了研究。
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