极地涡旋是冬季风形成的一个风系。
有段时期温度过高，融化了极地的部分冰层。
There was a period of excessive warmth which melted some of the polar ice.
在温带和极地地区适应季节的规律变化可能是相对简单的。
Adaptations to the regular change of seasons in the temperate and polar regions may be relatively simple.
当雪落在高山或极地地区时，它可能成为冰川系统的一部分。
When snowfalls on high mountains or in polar regions, it may become part of the glacial system.
冰川有时按温度分为流动较快的温和冰川或流动较慢的极地冰川。
Glaciers are sometimes classified by temperature as faster-flowing temperate glaciers or as slower-flowing polar glaciers.
从极地盖帽到赤道森林，这是不可逆转的世界，这就是我们拥有的所有自然。
It is this irreversibly modified world, from the polar caps to the equatorial forests, that is all the nature we have.
加拿大的北极是一个广阔的、没有树木的极地沙漠，一年中大部分时间都被雪覆盖着。
The Canadian Arctic is a vast, treeless polar desert that's covered with snow for most of the year.
长期以来，科学家们一直怀疑有几个因素导致了地球极地地区比其他地区更大的温度波动。
Scientists have long suspected that several factors lead to greater temperature swings at Earths polar regions than elsewhere.
长期以来，科学家们一直怀疑，有几个因素导致了地球极地地区比其他地区更大的温度波动。
Scientists have long suspected that several factors lead to greater temperature swings at Earth's polar regions than elsewhere.
从后来的任务中得到的数据显示，在两极地下不到一米的地方有浓度相当高的氢，由此推断是水。
Data from a later mission indicates significant concentrations of hydrogen and by inference water less than a meter underground at both poles.
从孩提时代起，Shirase 就梦想成为像阿蒙森一样的极地探险家，而他最初的目标是去北极。
Since boyhood, Shirase had dreamed of becoming a polar explorer like Amundsen, and he initially set his sights on the North Pole.
通常情况下，飞机不会在2月到次年10月之间经行极地，因为在漆黑、寒冷的天气下飞行是很危险的。
Normally planes don't go to the polar post from February to October because of the dangers of flying in the pitch-dark and cold.
Shirase仍然能感受到南极的吸引力，并最终决定向南进发，体验他一直梦想的极地探险的刺激和艰辛。
Shirase still felt the pull of the pole and eventually decided he would head southward to experience the thrills and hardships of polar exploration he had always dreamed of.
答案可能是，现在火星上几乎所有的水都被锁在地表下的永久冻土层中，更多的水被包含在这个星球的极地冰帽中。
The answer may be that virtually all the water on Mars is now locked in the permafrost layer under the surface, with more contained in the planet's polar caps.
它的范围包括海平面的极地地区、4500米高的干燥的亚热带地区以及3500-4500米高的潮湿的热带地区。
It ranges from sea level in the Polar Regions to 4,500 meters in the dry subtropics and 3,500-4,500 meters in the moist tropics.
过去几年的卫星观测和潜艇调查显示，极地地区的冰层减少了，但最近的测量显示，冰层的减少量比之前设想的更为明显。
Satellite observations and submarine surveys over the past few years had shown less ice in the polar region, but the recent measurements show the loss is more pronounced than previously thought.
最后，阿加西和其他人说服了地质学家和普通大众，一个巨大的大陆冰川作用已经把极地冰帽延伸到了现在享受温带气候的地区。
Eventually, Agassiz and others convinced geologists and the general public that a great continental glaciation had extended the polar ice caps far into regions that now enjoy temperate climates.
他认真积极地学习。
他积极地推动诸如道德之类的科学观念的传播。
He actively promoted the dissemination of scientific ideas about matters such as morality.
大主教亨特豪森也阐述了他的想法：妇女和同性恋者应更积极地参与教堂事务。
Archbishop Hunthausen also vocalized his beliefs that women and homosexuals should be more active in the church.
它能帮助员工积极地看待事物。
它帮助你积极地发展你的分析能力。
学生们积极地讨论和表达他们的观点。
The students discussed and expressed their opinions actively.
当有人和你说话时，你应该积极地听他说。
When someone is speaking to you, you're supposed to listen to him actively.
拉里意识到了自己的问题，并承诺要积极地生活。
Larry realized his problem and promised to live a positive life.
我开始积极地对待我的生活，我为真正的自己感到高兴。
I started to be positive towards my life, and I was happy about who I really was.
据报道，整个北极地区都发生了不寻常的事件。
现实情况是，南极地区存在地缘政治上的争议。
在接下来的几年里，他更加积极地参加政治活动。
During the following years, he took a more active part in polities.
这一警报是由北极地区史无前例的事件所引发的。
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