从沉降池流出的废水被加入消毒剂以杀死一切有害生物。
In all these diverse regions, Agassiz saw signs of glacial erosion and sedimentation.在这些不同的地区,Agassiz 都能发现冰川侵蚀和沉降的痕迹。
Unfortunately, such estimates did not adequately account for past differences in rates of sedimentation or losses to the total section of strata during episodes of erosion.不幸的是,这种估测没有充分考虑到过去在侵蚀期间沉积速率或地层总剖面损失的差异。