This is a lively rattlebag of a history of the Pacific slope and of how the Pacific Ocean came to be an American lake.
本书讲述了太平洋斜坡的(发家史)和太平洋如何成为美国的一个内湖,如一只嘎嘎带(rattlebag),生动有趣。
The site of the find is a sharp, narrow slope that may once have been on the shore of a lake.
发现那件东西的地方是在一个陡狭的斜坡上,那里从前也许是湖岸。
The relationship between the factors such as gradient, loads and groundwater and the slope stability in lake tunnel excavation should be known.
湖底隧道建设中,各种因素如边坡坡度,坡上超载以及地下水等对开挖时边坡稳定性的影响必须确定。
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