collective distribution meaning in English

共同分配

A study of distribution of heavy metals and mineral matter in sediments of bohai bay in tianjin ' s sea area is described , and based on this the correlation analysis is made ; the collective distribution trend of the elements is analyzed , which indicates the evident correlation of these heavy metals in this sea area , reflecting their concomitant geochemical character
摘要文中研究了渤海湾天津海域沉积物中重金属的空间分布特征，在此基础上进行了元素间的相关分析，以进一步分析元素间共同的分布趋势；同时对该海域表层沉积物矿物组合做了分析。