Each ore deposit underwent its own formation process and postore change and preservation history.

矿床学的基本内容应是矿床成因和矿床变化保存两个方面。

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Yet this more relaxed attitude towards history does not always beget more vigorous preservation of Shanghai's heritage.

然而，这样对于历史放松的态度不一定能换来对上海传统积极地保护态度。

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Looked from the construction time that, the Roman arena history is glorious, it is Europe also is the world preservation until now most ancient, the grandest arena, the sports arena.

从建筑时间来看，罗马斗兽场历史悠久，它是欧洲也是全世界保存至今的最古老、最宏伟的斗兽场、竞技场。

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In recent years, while making his own movies, Scorsese has dedicated himself to film history and preservation.

NEWYORKER: Fantastic Voyages

Yet this more relaxed attitude towards history does not always beget more vigorous preservation.

ECONOMIST: Shanghai's history

"Chinese intellectuals academics, architects and planners are now in very hot discussion about how best to pursue preservation, " said Li Xiangning, a professor of history and criticism at Tongji University in Shanghai.

WSJ: Ancient Village Rises in Shanghai; The Shock of the Old