查询词典 cold air

Results show that during the snowstorm disaster, under the large scale background with "trough in south and ridge in north", strong cold air caused by prevailing northerly wind in northern Asia wedged into low level atmosphere over Southeast China and formed a "clod cushion". At the same time, warm-wet air was also transported to Southeast China by southerly wind. The vertical shear of winds from cold to warm airflows produced strong upward motion and then, the warm-wet air over the cold air wedge was driven to rise. Finally, the structure of "warm cover" and "cold cushion", as well as corresponding vertical circulation over the converging frontal zone came into being.

研究结果表明，灾害发生期间，中国北方中低层大气盛行偏北气流，使较强的偏北冷空气"楔入"中国东南部低层大气，构成低层"冷垫"，同时偏南暖湿气流源源不断地将大量水汽输送到中国东南部，冷暖气流交汇及其垂直切变导致强烈的上升运动，构成了"冷垫"上空的"暖盖"及"南槽北脊"反位相环流汇合锋区的垂直环流结构。

I Zhanzaiyuanzili listening to the noise of the city's heart, was quickly surrounded by the cold air, cold air from beriberi Cuanjin a heart, no more than I miss you warmer this time of the fingers.

我站在院子里听着这个城市的喧嚣，心，被冰冷的空气迅速包围着，寒气从脚气窜进了心里，没有人比我这个时候更思念你温温的手指。

The results show that the dynamic force and thermal conditions of forming the squall line were the convergence of cold air from Mongolia cold vortex and the warm-humid air current before west trough to form the convectional system at moderate 3 scale; the rapid development and southward shift of MβCSs was caused by a strong unstable stratification and the shear line of suitable vertical wind; a heavy hail occurred after a vertical liquid water content over 65 kg/m^2 was firstly measured by weather radar; a sharp reduction of VIL indicates that a disaster strong wind will occur at soon.

结果表明：蒙古冷涡旋转下甩冷空气与西风槽前的暖湿气流汇合，形成中p尺度的对流系统是飑线形成的前期动力和热力条件；强的不稳定层结和合适的垂直风切变导致了MβCSs的迅速发展和南压；在天气雷达首次观测到垂直液态水含量值超过65kg/平方公尺后2h内出现了大冰雹；垂直液态水含量的突然减小标志着灾害性大风的开始。

Outside air reachs nip off energy-saving open wide first introduction, also can the cold air with indoor nip off is poured out of outside reach the hot air outdoor to enter.

掐断外面空气air及节省能源敞开始进门，同样可掐断室内的冷空气air往流岀岀及室外的热空气air步入。

Winter, mainly in Mainland China Polar continental polar air mass, or variability of air masses under the control of the mainland, at 80 ~ 90 ° E for many high-altitude ridge of high pressure, while the coastal areas at high altitudes often a great groove, ridge ago, after the trough of cold air southward continually strengthened cold high ground, warm up the oceans for many low-pressure control.

冬季，我国大陆主要为极地大陆气团或变性极地大陆气团所控制，在80～90°E高空多为高压脊，而沿海高空常为一大槽，脊前、槽后的冷空气不断南下，加强了地面的冷高压，温暖的海洋上多为低气压所控制。

The pressure ridge partly moved to southeast, it led to the cold air stream more moved to southeast, and the strong cold wave broke out. The water vapor from Caspian sea to Bslkhash lake accumulated at the upper of north Xinjiang, and it provided the water vapor condition for the cold wave. The ECMWF numerical forecast product accurately predicted the evolution trend of circulation (the position, intensity, path and speed of ground surface cold high pressure) of height field in this cold wave process. The predicted temperature at 850 hPa had good corresponding relation with the actual lowest temperature.

高压脊部分东南垮，导致强冷空气大举东南下，强寒潮天气暴发；里海到巴尔喀什湖的水汽在北疆上空聚积，为这次寒潮天气提供了水汽条件；ECMWF数值预报产品在这次强寒潮天气过程中准确的预报了高度场的环流场演变趋势，地面冷高压的位置、强度、路径和移速；850 hPa格点温度预报值与最低温度实况值具有很好的对应关系。

The results show that the formation mechanisms of the event are as follows.(1) The strong warm advection of 500hPa over the west Europe led to a blocking high created in Siberia area, and a zonal though, the north-east stream in the north edge of the though led to super polar cold air and the cold air from west together and got to strengthen, and then the abnormally strong cold high, front zone, cold temperature center and cold temperature advection appear.

结果表明：这次寒潮及寒潮天气主要成因是(1)西欧上空500hPa强暖平流致使在西伯利亚地区形成阻塞高压，建立横槽，横槽北侧的东北气流引导超极地冷空气和西路冷空气合并加强；形成了异常强的冷高压、锋区、冷温度中心和冷温度平流。

The dry, cold air that leaves the evaporator flows through the second path of the precooler, such that the dry, cold air is used to precool the incoming moist air.

干旱，寒冷的空气离开蒸发器流经的第二个路径的precooler ，如干燥，寒冷的空气是用来预冷传入的潮湿空气。

Analyses the air handling process of cold air distribution system with outdoor air introduced to machine room directly or after being handled to the state of indoor air enthalpy.Presents in detail the drawing steps of the air state points in psychrometric chart for the air conditioning unit with blowing-through type fan.

分析了低温送风空调系统在新风直接引入和新风集中处理至室内空气状态点的等比焓线后引入空调机房两种情况下的空气处理过程，详细给出了空调器采用压出式风机配置时的焓湿图绘制步骤。

By using global reanalysis data from NCEP/NCAR,the durative of a floating dust over Beijing during 7-10 in April of 2006 was analyzed.It was found that the impact systems of the floating dust weather were West Siberia cold eddy,Okhotsk warm high and Tibetan Plateau high ridge at the level of 500 hPa;the dry-cold air at the level of 700 hPa transferred to Beijing ceaselessly,and the cold advection and baroclinic instability were strong,the gale and dust storm occurred in the strong cold advection area;the weak instability stratification in surface layer and mid-low level in the south of North China resulted in weak ascending air flow,then transported dust particles to Beijing depending on the easterly wind in front of the surface low pressure.

文章摘要：使用NCEP/NCAR再分析资料对2006年4月7-11日北京浮尘天气过程的持续性进行分析，指出此次浮尘天气过程主要受500 hPa西西伯利亚冷涡、鄂霍次克海暖高压以及青藏高原高压脊影响；700 hPa有干冷空气不断向北京地区输送，冷平流和斜压性都很强，大风和沙尘暴发生在强冷平流区域；由于华北南部地区近地面至中低层存在弱的不稳定层结，容易产生弱的上升运动。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。