1.
Cold air is actively burrowing under warm air.
冷空气快速地潜入到暖空气下面。
2.
The windows can keep the cold air out and the warm air in
窗户能阻挡冷空气入内和防止暖空气外流。
3.
Warm air rises by convection.
暖空气因对流作用而上升。
4.
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。
5.
The frozen vegetables should thaw out first at rom temperature
温暖的空气使奶油融化。
6.
heating, air-conditioning and ventilation
暖气、空调和通风（系统）
7.
The morning was fine and warm, the air clear.
清晨，天气晴和温暖，空气清爽宜人。
8.
Air at higher levels may remain warmer than that near the ground.
高层的空气可能比接近地面的空气较为暖和。
9.
Climatic characteristics of cold air under global warming in Shijiazhuang,Hebei province
气候变暖背景下石家庄冷空气活动的气候特征
10.
American Society of Heating and Air-Conditioning Engineers
美国暖气及空调工程师协会
11.
Make electrical terminations for HVAC equipment
为取暖、通风和空调设备制做电气终端
12.
The air is warm and the birds are singing.
空气中带着一丝暖意，鸟儿也在歌唱着。
13.
Is the room warmer than the cold air outside?
房间里会比外面冷空气暖和吗？
14.
American Society of Heating, Refrigerating and Air-conditioning Engineers [ASHRAE]
美国采暖、制冷及空气调节工程师协会
15.
The sun's heat warms the air and makes it move.
太阳的热量使得空气暖热，并使其运动。
16.
The atmosphere was so full of warmth and silence that I sank into its arms.
空气中充满了温暖和静谧。
17.
Currents of warm air keep the hang-gliders aloft.
悬挂式滑翔机藉着暖气流在高空飞行.
18.
Air Conditioning, Heating, Ventilating and Refrigeration Unit
空气调节、供暖、通风及冷藏股