There are many factors that lead to the uplifting of air , for example , solar heating ; in the vicinity of low pressure troughs ; when two different air streams meet ; or when air is forced uphill 空气上升的原因很多，例如地面受太阳照射加热在低压槽附近两股不同的气流汇聚或遇上高山而上升等。
There are many factors that lead to the uplifting of air , for example , solar heating ; in the vicinity of low pressure troughs ; when two different air streams meet ; or when air is forced uphill 空气上升的原因很多，例如地面受太阳照射加热、在低压槽附近、两股不同的气流汇聚或遇上高山而上升等。
Dry gas enters into the bottom of drier and produces strong rotating air stream that exerts strong rushing effect to raw material on the wall , therefore the phenomenon of stricking on the wall is removed 干燥气体进入干燥机底部，产生强烈的旋转气流，对器壁上物料产生强烈的冲刷带出作用，消除粘壁现象。
According to newton ' s third law of motion ? for every action there is an equal and opposite reaction ? air streaming out the back faster than the aircraft ' s speed will thrust the plane forward 依据牛顿第三运动定律，每个作用力必会产生一个等量而反向的作用力，因此当空气以高于飞机的速度自引擎尾部流出时，便可将飞机向前推。
( 2 ) the yearly vapor water transport in northwest china is mainly consist of the west - southly air stream from the center - west of qinghai - xizang plateau and the east - southly air stream from the south of shanxi province ( 2 )西北地区全年水汽输送主要来自与其南面相邻的青藏高原中西部的西南暖湿气流以及陕西南部的东南暖湿气流。
Lying between these high - speed air streams are air streams of lower wind speed . aircraft traversing through alternating high - speed and low - speed air streams may encounter headwind losses and gains at different locations along the approach and departure corridors 当飞机沿著进场或离场走廊穿越这些高低速交替的气流时，可能会在不同位置遇到逆风减少和增加的情况。
Dr hon david li raised a question on combating regional air pollution problem , noting that the poor air quality was caused by a very still wind condition and incoming air pollutants brought in by an air stream from the prd region 李国宝议员提出有关解决区域性空气污染问题的质询，当中指出空气质素恶劣，是因风力非常微弱及气流将珠江三角洲地区的空气污染物吹往本港所致。
Dr hon david li raised a question on combating regional air pollution problem , noting that the poor air quality was caused by a very still wind condition and incoming air pollutants brought in by an air stream from the prd region 李国宝议员提出有关解决区域性空气污染问题的质询，当中指出空气质素恶劣，是因风力非常微弱及气流将珠江三角洲地区的空气污染物吹往本港所致。
It strengthens the process of heat exchange . at the bottom of drier , the large and damp granule is crushed under the action of stirrer and the granule that is small in particle and contain less moisture will lift accompanied with revolving air stream 在干燥机底部，较大较湿的颗粒团在搅拌器的作用下被机械破碎，湿含量较低颗粒度较小的颗粒被旋转气流夹带上升，在上升过程中进一步干燥。
Under the action of cycle fan , the hot air stream inside each unit of the dryer will carry out hot air cycle . final air with iow temperature and high damp will be out . the whole drying process with stably and high effect will be finished 使热空气穿流通过床面上的被干燥物料进行均匀的热质交换，机体各单元内热气流在循环风机的作用下进行热风循环，最后排出低温高湿度的空气、平稳高效地完成整个干燥过程
