Eventually a dutch historian mentioned a retired mongolian geographer , professor baasan tudevin , who had travelled extensively through thegobidesert .
最后有一位荷兰历史学家提到了一位退休的蒙古地理学家，巴桑图德温教授，他曾经走遍了戈壁沙漠。
Sun lan was a well-known chinese geographer , astronomer , mathematician , historian , painter and calligrapher in the 17th century .
孙兰是十七世纪中国著名地理学家及天文学家、学家、史学家、画家。
According to paul sutton , a geographer at the university of denver and frequent collaborator with the noaa team , measuring artificial lighting may in fact become one of the best ways for estimating how technology affects humanity 's entire ecological footprint on earth .
Strabo the geographer , writing in the first century , described the city walls high on the crest of a hill , as being steep to the very top and difficult to ascend .
斯特拉波，地理学家，在一世纪的时候写作形容山脊上的城市高墙陡峭至极，难于攀登。
1st Century bc first mention of sherry by strabo , a greek geographer , who writes about vines being brought to jerez by the phoenicians .
