The present author has investigated tiger traces for three times in Daba Mountain.
本文作者对大巴山进行了三次考察。
The purpose of this paper, is to review theoretical and experimental studies of the soft layer artificial hip joints the present author has conducted extensively over the past few years.
本文旨在介绍作者数年来对一种新型软层材料人工髋关节所作的理论及实验研究。
The author has an eye for links between past and present.
作者看到了过去和现在之间的联系。
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