在北极,这些振荡大约每隔60至70年就出现一次。
In the Arctic these oscillations occur about every 60 to 70 years.
去年冬天北极这种负向振荡从加拿大群岛北部地区运来多年老海冰(四,五年或更多年的老海冰)。
This past winter's negative phase of the Arctic Oscillation transported old ice (four, five, and more years old) from an area north of the Canadian Archipelago.
去年冬天北极这种负向振荡从加拿大群岛北部地区运来多年老海冰(四,五年或更多年的老海冰)。
This past winter's negative phase of the Arctic Oscillation transported old ice (four, five, and more years old) from an area north of the Canadian Archipelago.
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