These mammals can stay underwater for six minutes before surfacing.

这种哺乳动物可以在水下停留6分钟，才浮出水面。

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They spent 30 minutes on the bottom of the world before surfacing with their glass viewing ports cracked by the pressure.

30分钟后，他们的观察口玻璃出现裂缝，为防止被巨大的水压碾碎，行动终止并返航。

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The welding rod has good wearing resistance and needn't warm before welding, which may be used to the surfacing of the roller.

该焊条耐磨性能好，焊前不预热，可用于轧辊的堆焊。

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Southerland did not play against the Wildcats in the Carrier Dome Jan. 12, his eligibility issue surfacing just before the opening tipoff.

WSJ: Reserves ready to go for short-handed Syracuse

New allegations are surfacing about BP's awareness of problems with the well before the accident on April 20th.

ECONOMIST: BP and the oil spill