Case studies are an integral part of knowledge cumulation. 案例研究是知識累積的主要部分。
A regional association contributing to the comprehensive regional economic integration of its members may be granted GSP cumulation benefits. 加入綜合區(qū)域經(jīng)濟(jì)集團(tuán)成員國的區(qū)域性聯(lián)盟，可得到普惠制的累積優(yōu)惠額。
Cumulation in each sample plot was a little different with the annual litter production. 各樣地的蓄積量多少與年凋落量有一些差異。