Conversely, a pond with a stream flowing in one end and out the other, which dries up when the stream dries up, is clearly surface water dominated.

相反，有径流从两端流进流出的池塘，在径流枯竭的时候也会干涸，地表水就明显占据主导地位。

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It then floats to the surface of the pond, allowing it to be skimmed off like cream and turned into biodiesel.

然后，油便漂浮在池塘表面，很容易的便可以像油脂一样被刮起来，转变为生物柴油。

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A light wind disturbed the surface of the pond.

微风使池塘水面泛起涟漪。

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An interesting note in the financial statements was the news that in September Suncor become the first oil sands company to complete surface reclamation of a tailings pond, a key step in returning the site back to nature.

FORBES: Buy Suncor for growth

She was lost beneath the surface for thirty minutes before her parents found her on the pond bottom and pulled her up.

NEWYORKER: The Checklist

ExoMars, as we call it on this side of the pond, envisages a satellite to study the Martian atmosphere, followed by a large robotic rover to drill beneath the surface and cache rocks for later return to Earth.

BBC: Where now for Mars exploration?