Gravity pulls down cold air, and warm air rises.
重力令冷空气下沉，暖空气上升。
Without those masses of cooling sea ice, warm air brought to the Arctic can penetrate further inland than it ever did before.
如果没有这些大量冷却的海冰，被带到北极的暖空气可以比以前更深入渗透到内陆。
Suddenly, there appeared a hole in their nest. The cold wind blew in through the hole and got away the warm air from the nest.
突然，他们的巢里出现了一个洞。冷风从洞里吹进来，把巢里的暖空气吹走了。
Because warm air can hold more moisture than cool air, the relative humidity will be constant only if the amount of water vapor in the atmosphere increases as the temperature rises.
因为温暖的空气比冷空气能容纳更多的湿气，所以只有当大气中的水蒸气量随着温度的升高而增加时，相对湿度才会保持不变。
The same events brought warm air from the tropics to Greenland, so it was getting warmer.
而同样的‘阻塞事件’却将热带地区的暖空气带向了格陵兰岛，所以这一地区就变得更加温暖。
Large birds of prey soar on drafts of warm air.
大型捕食鸟儿在暖气流上飞翔。
Currents of warm air keep the hang-gliders aloft.
悬挂式滑翔机借着暖气流在高空飞行。
Water vapor in the rising warm air condenses to liquid water.
上升的暖空气中的水蒸气冷凝成液体的水。
This is covered by an upper layer of warm air that ACTS like a lid.
上面的暖空气层覆罩着它们，作用就像一个盖子。
As warm air rises from a place, cool air rushes in to full the space left behind.
热空气从一个地方上升时，冷空气快速地流过来填充所留下的空间。
As warm air rises cool air is drawn in to replace it creating a convection current.
热空气上升，冷空气补充取代之，就产生了对流气流。
He smelt the warm air from the moor, and watched the little white clouds in the blue sky.
他吸了一口这来自荒地的温暖空气，并看著蔚蓝天空里洁白的小云絮。
The scent of pear flower and honeysuckle full of every corner of room moving with warm air.
温暖的空气里充满了梨花和忍冬树丛发出的清香。
I know I have a hard time concentrating when I'm breathing in stale or warm air and it affects my work.
我知道自己在污浊或暖空气里会很难集中精神，也影响工作。
To combat cold weather birds ruffle their feathers trapping layers of warm air to insulate their bodies.
为了抵御寒冷天气，鸟儿们竖起羽毛，裹住一层层的暖气，使身体与外界隔绝。
The device could be applicable to large space to supply cold and warm air in different supply direction.
该圆盘形散流器可在高大空间中满足输送冷、暖风所需的不同送风方式。
If the wind is strong, it penetrates your clothes and removes the insulating layer of warm air around you.
如果风很大，它会穿过你的衣服把那层保暖的暖气给吹走。
They also have 30 percent more feathers in the winter and can fluff them up, trapping a layer of warm air.
它们的羽毛在冬季也要增加30%，它们把羽毛蓬松开，来保留住一层温暖的空气。
The built-in cooking appliance can efficiently discharge warm air and prevents an inflow of external water.
所述嵌入式烹饪器具能高效地排出热空气，并防止外部的水流入。
The warm air in the corridors is circulated in working Spaces through air vents and provides passive heating.
走廊里的暖空气，通过通风口在办公区域流通，进而提供被动供暖。
The warm air from the stove made him sleepy, and he forgot to open one of the air-holes before going to sleep.
炉子里散出的热气让他感到瞌睡，在睡着前，他忘记打开一个通气孔。
The warm air from the stove made him sleepy, and he forgot to open one of the air-holes before going to sleep.
炉子里散发的热气让他昏昏欲睡，而且他忘了在睡觉前打开通气孔。
Tin can LIDS were tacked over holes in the floor to keep warm air inside and to keep cold wind and mice outside.
马口铁罐头盒盖子被固定在地板上，一是为了室内保温，二是挡住冷风和老鼠。
The coming cold is connected to the lower flow speed of the Gulf Stream, which causes it to send less warm air to Europe.
这种极端天气的形成是由墨西哥湾暖流活动速度减缓，从而输往欧洲的暖空气减少所致。
This is because the air contracts into a smaller volume at low temperatures, giving warm air above it room to expand downwards.
因为温度下降时空气体积收缩，上方的暖空气得以向下膨胀。
That led to us getting colder weather in Europe. The same events brought warm air from the tropics to Greenland, so it was getting warmer.
这一现象给欧洲带来了寒冷的气候。而同样的‘阻塞事件’却将热带地区的暖空气带向了格陵兰岛，所以这一地区就变得更加温暖。
In all ships in which a heating system is required, the heating should be by means of hot water, warm air, electricity, steam or equivalent.
在所有要求配备供暖系统的船上，可用热水、热气、电力、蒸汽或等效方式供暖。
When you walk outside of the airport, you will feel the warm air around your face. Although it is not totally fresh, it feels pretty natural.
踏出机场大门，有点温热的空气迎面扑来，感觉尚好，虽然不是十分清新，倒也自然。
The ana-warm front, with rising warm air, has multi-layered cloud which steadily thickens and lowers towards the surface position of the front.
随着暖空气上升的上滑暖锋有多层云系，这些云系稳定的增厚，并向锋的地面位置下降。
The ana-warm front, with rising warm air, has multi-layered cloud which steadily thickens and lowers towards the surface position of the front.
随着暖空气上升的上滑暖锋有多层云系，这些云系稳定的增厚，并向锋的地面位置下降。
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