This time of year, they should be foraging from the sea ice floating over the productive waters of the continental shelf.

往年这个时候，它们应该在漂浮在这片大陆架地区食物丰富的海域上的冰面上捕食。

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The continental divide refers to an imaginaryline in the North American Rockies that divides the waters flowing into the Atlantic Ocean from those flowing into the Pacific.

大陆分水岭是指北美洛矶山脉上的一道想象线，该线把大西洋流域和太平洋流域区分开来。

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The continental dividerefers to an imaginary line in the North American Rockies that dividesthe waters flowing into the Atlantic Ocean from those flowing into thePacific.

大陆分水岭是指北美洛矶山脉上的一道想象线，该线把大西洋流域和太平洋流域区分开来。

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Royal Dutch Shell estimates that the waters of the outer continental shelf contain 100 billion barrels of technically recoverable oil.

FORBES: Magazine Article

Recent studies have found that federal waters along the Outer Continental Shelf likely contain more than 80 billion barrels of oil.

FORBES: Energy Sec Chu Says Global Warming Is Real; Nat Gas Will Be Bridge Fuel

Royal Dutch Shell (nyse: RDSA - news - people ) estimates that the waters of the outer continental shelf contain 100 billion barrels of technically recoverable oil.

FORBES: OutFront