当然，这意味着北半球冬季和南半球夏季的开始。
Of course, the December solstice marks the beginning of winter in the northern hemisphere and summer in the south.
本文研究了北半球冬季大气环流结构对CO_2温室效应的响应特征。
In this paper, the response characters of general circulation structure to CO2 greenhouse effect in northern hemisphere during winter arc studied.
观测和模拟结果都表明，在北半球冬季准定常行星波的经向传播存在两支波导。
Both observations and simulations indicate that in the Northern Hemisphere winter there are two waveguides for the meridional propagation of quasi-stationary planetary waves.
观测和模拟结果都表明，在北半球冬季准定常行星波的经向传播存在两支波导。
There is evidence that the troposphere-stratosphere coupling interaction is closely associated with the quasi-stationary planetary wave activity.
观测和模拟结果都表明，在北半球冬季准定常行星波的经向传播存在两支波导。
There is evidence showing that the troposphere-stratosphere coupling interaction is closely associated with the quasi-stationary planetary wave activity.
传统最迟于四月和五月开始，市场上看到了更高的要求，因为北半球冬季的结束。
Traditionally starting from April and May at the latest, the market sees higher demand, because of the end of winter in the northern hemisphere.
因而，就算流感在北半球冬季结束时得以减弱，它也不过只是转移到了南半球(那里正进入冬季)。
Hence, even when flu subsides at the end of the northern hemisphere's winter, the disease merely shifts to the southern hemisphere (which is now entering its winter).
我们很快就会知道，600年前北半球大部分地区每年夏季和冬季的温度是如何变化的。
We are close to a knowledge of annual summer and winter temperature variations over much of the northern hemisphere going back 600 years.
冬季六边形包括一些可见的最亮的恒星，它们在地球北半球的冬季天空中形成了一个大而容易辨认的图案。
The Winter Hexagon involves some of the brightest stars visible, forming a large and easily found pattern in the winter sky of Earth's northern hemisphere.
在今年北半球的冬季期间，有些国家继续在相对年轻的年龄组人群中出现严重的H1N1疾病病例。
During this winter season in the northern hemisphere, some countries continue to see cases of severe H1N1 disease in a comparatively young age group.
北半球的春季剩一个月就到来了，在春天的第一天来到之前，让我们再看一眼过去几个月里寒冷下雪的冬季。
With one month of the season left before the first day of Spring in the Northern Hemisphere, take a look at the cold, snowy days of the last couple months.
当流行性疾病在冬季逐渐加强其势力，先是在北半球，而后在南半球，这种极令人稍许放松的画面被极端事件所取代。
As the pandemic gains ground during the winter seasons, first in the northern hemisphere, later in the south, this largely reassuring picture will be undercut by extremes.
大半个北半球经历了一个糟糕的冬季。
乌克兰疫情可能表明冬季期间该病毒在北半球，特别是在东欧那些典型的卫生保健机构中会有何种表现。
The outbreak in Ukraine may be indicative of how the virus can behave in the northern hemisphere during the winter season, particularly in health care settings typically found in Eastern Europe.
北半球一些国家在夏季出现广泛、大量感染新病毒病例，随后在秋季和冬季发生了更高水平的感染。
Widespread, high levels of infection with the new virus occurred during the summer in the northern hemisphere in multiple countries, followed by even higher levels during the fall and winter months.
大多数的天文爱好者会认为天蝎座是夏季的星座（对于北半球来说），但是如果你在冬季黎明前早起的话，在东南方天空仍然可以看到它。
Most skywatchers think of Scorpius as a summer constellation (in the Northern Hemisphere), but early risers get a preview of the Scorpion climbing the southeastern sky before dawn during winter.
在北半球里，“冬季的精灵”是经常有的。
"Winter sprites" are common in the northern hemisphere during winter months.
秋季指一年中介于夏季和冬季之间的一个季节，自秋分起到冬至止，在北半球是九月至十二月；秋天。
The season of the year between summer and winter lasting from the autumnal equinox to the winter solstice and from september to december in the northern hemisphere; fall.
然而，当它在南半球是夏天的时候它在北半球却是冬季，反之亦然。
However, when it is summer in the southern hemisphere it is winter in the northern hemisphere, and vice versa.
这是因为大面积雪盖的高反射特性（北半球的冬季，雪可覆盖到40％的陆地表面）。
This is because of the highly reflective nature of snow combined with its large surface coverage (snow can cover up to 40% of the Earth's land surface during the Northern Hemisphere winter).
在全球增暖背景下，冬季北半球高纬地区增温幅度更大，但温度变化明显具有区域性特点。
Under the background of global warming, the amplitude of temperature increase in winter in northern high latitudes is getting bigger and it has different features in different regions.
对于北半球，这次满月是夏天最后一次满月，而对于南半球，这次是冬季最后一次满月。
For the northern hemisphere, this September full moon is the last full moon of summer. For the southern hemisphere, it is the last full moon of the winter season.
冬夏季北半球极涡面积的比较发现夏季和冬季相比极涡边界收缩了近30个纬度。
For the polar vortex area on the Northern Hemisphere, in summer the polar vortex boundary withdraw about 30 latitudes than winter.
秋季：指一年中介于夏季和冬季之间的一个季节，自秋分起到冬至止，在北半球是九月至十二月；秋天。
The season of the year between summer and winter, lasting from the autumnal equinox to the winter solstice and from September to December in the Northern Hemisphere; fall.
在接下来的几个月，随着冬季降临到人居密度稀疏的北半球，此次的疫情可能会在北半球慢慢减弱，继而南下。
The infection will probably tail off in the north over the next few months and head south as winter gets a grip on the Earth's less populated hemisphere.
红粘土的粒度分布表明，东亚冬季风环流而非北半球西风环流控制着红粘土物质的堆积过程。
The size distribution of red clay showed that the accumulation of red clay was controlled by East Asian monsoon circulation rather than westerly circulation.
红粘土的粒度分布表明，东亚冬季风环流而非北半球西风环流控制着红粘土物质的堆积过程。
The size distribution of red clay showed that the accumulation of red clay was controlled by East Asian monsoon circulation rather than westerly circulation.
应用推荐