There are rich iron mines around the largest lake, L. Superior in the west.

在最大的湖即西边的苏必利尔周围有着丰富的铁矿。

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There are rich iron mines around the largest lake , L . Superior in the west.

在最大的湖即西边的苏必利尔周围有着丰富的铁矿。

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The vertical distribution of lead, cadmium, copper, zinc and iron has been investigated in the sediments of East Lake, Wuhan.

采集东湖柱状沉积物，分析了铅、镉、铜、锌、铁等金属元素的垂直分布特征。

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The Soo Locks linked iron mines near Lake Superior with the cities of Detroit, Michigan; Cleveland, Ohio and Chicago,Illinois.

VOA: special.2009.11.11

"Scientists noticed that the levels of iron and manganese in the lake changed with the seasons and were co-ordinated with the growth patterns of the bacteria, " Dr Clarke said.

BBC: Bacteria power 'bio-battery' breakthrough

The hut stood on its own patch of land, which was walled off by stakes, stones brought from the shore of Lake Onega and piled up haphazardly, and rusty sheets of roof iron, probably carried here from some distant town by a gale.

NEWYORKER: Among Animals and Plants