一支以王玎(中国水生生物学研究所的科学家)为领导的由海洋生物学者组成的专家组最近对一部拍摄于长江东部流域的数字电视录象带进行了审核。
A team of marine-life scholars led by Wang Ding, a scientist at China's Institute of Hydrobiology, examined digital video footage recently taken along the eastern section of the Yangtze River.
科学家认为白暨豚最开始迁移到这一流域大约是在2千万年前，因此它算是最古老的几种海豚之一。
Scientists believe the baiji first moved into the area some 20 million years ago, making it one of the oldest species of dolphin.
降水入渗规律的研究可为流域水文过程的预测和评价提供重要的科学依据。
Study of water through soil infiltration may offer a scientific support for prediction and evaluation of watershed hydrological processes.
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