查询词典 air-resistance

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。

The air anion is to have the negative charge air numerator , may make person be in high spirits , improve human body enginery, the air "vitamin" is called by people, may make person feel air "is stale " if being short of an anion , feel that the sense of suppression in the chest, gets nervous , dizziness , adyramia , availability and situation come down obviously.

空气负离子是带负电荷的空气分子，可使人精神振奋，提高人体机能，被人们称之为空气"维生素"，若缺乏负离子可使人感到空气"不新鲜"，感到胸闷、心慌、头晕、无力、工作效率和健康状况明显下降。

We used NCAR/NCEPT anew analyze data and the method of bilinearity insert to fix on profile distribution of several physical field in the air on observation point and the stream field of 700hPa. We primary discussed the possible mechanism to influence aerosol size distribution.The atmospheric condition of 1000hPa~700hPa level had great influence on aerosol size distribution, and influence on coarse particle mainly below 850hPa level. The horizontal wind velocity of 925hPa level is a primary gene which contributed to coarse particles in the air. Vorticity profile especially below 700hPa level is a key gene to influence diffuse and convergence of local aerosol. The air vertical motion velocity greatly influenced aggregation and remove of aerosol particles. The vertical distribution of air temperature mainly influenced vertical transportation of aerosol.

利用NCAR／NCEP逐日再分析资料，通过双线性插值方法，确定观测点上大气中几个物理量的廓线分布；及700hPa的流场，初步探讨了影响大气中气溶胶粒子谱分布的可能机制： 1000hPa～700hPa的大气状况对气溶胶粒子谱分布影响显著，对粗粒子气溶胶的影响显著的主要集中在850hPa以下；925hPa的水平风速是影响大气中粗粒子气溶胶的一个主要因子；涡度廓线(尤其是700hPa左右及以下的涡度廓线)是影响局地气溶胶的扩散的一个关键因子；大气的垂直运动速度对气溶胶的聚合及移出影响较大；大气温度的垂直分布主要影响气溶胶垂直输送。

The mainest environment problem has the whole world air temperature to change now warm, air pollution , water resource contaminate wait, specifically for all above problem, blowoff I think that the primo ought to control the automobile tail gas, the tail gas sends warm air pollution to make and the air temperature is changed into more than the correct or required number to have interwovenness relation , secondary, the industrial sewage and domestic sewage overanxious and purifying, cut down contaminating to water resource.

现在最主要的环境问题有全球气温变暖，大气污染，水资源污染等，针对以上问题，我觉得首先应当控制汽车尾气的排放，过多的尾气派发与气温变暖和大气污染有着密不可分的关系，其次，过虑和净化工业废水和生活污水，减少对水资源的污染。

The article mostly discusses gas application burning excess air coefficient calculation methods, introduces different calculation formula application range, and giving examples in natural gas, liquefied petroleum gas and manufactured gas calculate its excess air coefficient on the same oxygen content of fuel gas, and the influences of excess air coefficient to air consumption and fuel gas production during burning process.

文章主要论述了燃气具燃烧过剩空气系数的计算方法，介绍了不同过剩空气系数计算公式的使用范围，并举例天然气、液化石油气和人工煤气三气种燃气具在测得烟气中相同氧含量时过剩空气系数的计算方法，以及过剩空气系数对燃气具在燃烧过程中消耗空气量和同时产生烟气量的影响。

By the analysis of heat transfer between air and wall in vertical direction and the mechanism of air flow in large space building, this paper provides a theoretical model that the air temperature in vertical direction can be divided into three zones: temperature-constant air-conditioning zone, main convection zone and top heat stagnation zone.

通过对大空间建筑室内垂直方向上空气与壁面换热和流动机理分析，提出了空气温度在垂直方向上划分为等温空调区、对流主区域、顶部热滞留区域三个区域，建立了对流主区域、顶部热滞留区域求解空气温度的数学模型，推导得到了相应的分析解，提出了计算大空间建筑室内垂直温度分布简易模型。

An air condition scheme is made by comparison in which the air condition system consists of cabinet air conditioner by air cooling direct evaporation and the conditioners are arranged dispersedly.

针对其建筑的实际情况，经方案比较，采用风冷直接蒸发式柜式空调机全空气系统，分散冷源空调的方案。

By using Lee\'s matching law, the excess pore-air pressure, excess pore-water pressure and settlement in the Laplace-transformed domain are obtained for one-dimensional consolidation in unsaturated soils, under the large-area uniform instantaneous loading. A computer program using the method by Crump and Durbin is developed to obtain the semi-analytical solution of the excess pore-air pressure, excess pore-water pressure and settlement under the boundary conditions of the top surface permeable to water and air and the bottom impermeable to water and air.

8采用李氏比拟法，应用Merchant粘弹性模型，得到了Laplace变换域内粘弹性非饱和土地基一维固结时超孔隙水压力，超孔隙气压力以及土层沉降的解；采用Crump及Durbin方法实现Laplace逆变换，获得大面积均布瞬时加荷，在顶面排气排水，底面不排气不排水情况下粘弹性非饱和土地基一维固结时的半解析解。

The air vessel works through twice air releases, solving the problem of inconstant air supply in process of cotton opening and blending. Test and application proves that the multifunctional air vessel can solve the problem of block up caused by the uniaxial cotton opener, keeping smooth operation of the production including effective dust removal, clog and iron seperation, avoiding the disadvantage of the former units including the sporadic cutover, simplifying the blow card flow, thus reinforce quality of the card sliver and the resultant yarn.

该设备通过两次释压，解决从抓棉到开棉、混棉间的气流不平衡问题，通过试验和实际使用，指出多功能气流塔能有效解决单轴流的堵车，保证清梳联的稳定运行；在除尘、重物分离和去铁杂等方面也有着较为理想的效果；能解决原各辅机在输棉管路中分散接入的缺点，简化了清梳联流程；能提高生条、成纱的质量。

There are greater differences between the absorbing dust、sulfur dioxide and heavy metal capability of different types of trees. Synthetically Considering the purification function on the air pollution of trees, can divide the trees into : The first kind of comprehensive absorbability to the air pollution is relatively strong, pagoda tree, Apple, China Savin, Poplar; Second comprehensive absorbability in air pollution strong, such as Deodar Cedar, purple leaf Li, Glossy Privet; The third kind of comprehensive absorbability to the air pollution is medium-sized, such as the cedar , Pear , Evergreen Euonymus , peach, apricot, Huashan pine.

综合考虑植物对环境的净化作用，可将试验段生态防护林带的组成树种分为三类：第一类对环境净化能力很强，如圆柏、国槐、杨树、苹果等；第二类对环境净化能力强，如雪松、大叶女贞、紫叶李等；第三类对环境净化能力中等，如华山松、梨、杏、桃、黄杨等。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。