As proved by the study, lacustrine sedimentation of Nansihu and Beiwuhu in middle and south part were formed in late period of Holecene.
经研究认为，该区中南部的南四湖、北五湖的湖相沉积大约形成于全新世中晚期之后。
It is considered that the district received clastic sediments from two matter source directions during the Asan sedimentation period and formed two completely different reservoir rock bodies.
他们认为，阿三段沉积时期，该区接受来自两个物源方向的碎屑沉积，形成两种截然不同的储集岩体。
Magnetic field can shorten the period of sedimentation greatly.
磁场能大大缩短废水分离时间。
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