polar night

基本解释

• [天] 极夜

同根派生

英汉例句

双语例句

• To fight off the perpet­ual blackness of the polar night, a windmill was installed to run electric arc lamps.
  为了击退极地之夜的黑暗，他还装了个风车发电运行电弧灯。
• This difference allows the satellite to capture a year-round sea ice record, despite cloud cover and months of polar night.
  这种差别使得卫星能够获取整年的海冰记录，除非出现云层遮蔽或极夜的月份。
• But as the annual winter sea ice boundary retreats farther south, pack ice penguins may ultimately find themselves trapped behind a curtain of polar night for which they have no hardwired strategy.
  但随着冬季海冰边界不断向南撤退，喜欢在积冰上生活的企鹅也许最终会被困在极夜的黑幕中无法脱身。

词组短语

短语

• polar night jet 极夜急流;极夜喷流
• polar night jet stream 极夜喷射气流
• Polar night charm 极夜魅惑
• polar night vortex 极夜涡旋
• Polar Night Half Marathon 极夜马拉松

英英字典

剑桥英英字典

• a night or the time in winter at places close to the North or South Pole, when the sun does not appear above the horizon

专业释义

地球科学

• 极夜

天文学

• 极夜