9 summation

summation
n
(fml 文)
1 summing-up; summary 总结; 概括
    begin a summation of the evidence presented 对提供的证词进行总结.
2 addition 加(法): do a rapid summation of the figures 把数字很快加起来.
3 gathering together of different parts to form a representative whole (各部分聚集一起而形成的)有代表性的整体
    The exhibition was a summation of his life´s work. 这次展览汇集了他一生中典型的作品.