Atmospheric precipitation

With FDDA method, the precipitation echo reflectivity field gained by observation and three dimension wind field as well as other parameters obtained by retrieval are put into the usual mesoscale or smallscale numerical model, so that the inner structure of mesoscale or smallscale weather system is better researched and precipitation is estimated more exactly.

2利用四维同化方法，将单多普勒天气雷达观测得到的降水回波的反射率场以及用反演技术得到的三维风场及其它变量，加入到通用的中小尺度数值模式中，以便更好地研究中小尺度天气系统的内部结构，预测其演变，并提供更精确的降水估计。

Test results showed that added≤2% BaO in test mould powder was available to improve lubricant and vitreous performance of flux and restraine precipitation of crystals, and as BaO content was≥4%, the precipitation of cryst...

试验结果表明，在实验渣中加入≤2％BaO，可有效地改善保护渣的润滑性能，抑制晶体析出，改善熔渣的玻璃性能；BaO含量≥4％时，完全抑制晶体析出，得到良好的玻璃态渣膜。

P in Shule River Alluvial Fan Oasis in Gansu subsidized by CNSF. Through field geological and environmental observations and sampling, quartz OSL dating, organic carbon ~(14)C dating, as well as analysis of TOC,grain size and Pollen assemblage of the samples from ten sediment profiles in front fine grain sediment zone of the Shule River Fan, the results obtained as follows:(1)The vegetation evolution history on Shule River Alluvial Fan and circumjacent since about 13 ka B.P. could be divided into 6 phases: about 12.1-13.1ka, a sparse coniferous and broadleaf trees - shrub grassland, cold and wet climate; 9.2-12.1ka, shrub grassland, temperature rising but precipitation and humidity getting down; 5.8-9.2ka, sparse forest with the most flourish shrub grassland under the optimal climate; 4.3-5.8ka, coniferous and broadleaf mixed forests -shrub grassland, temperature rising slightly and getting dry; 4.3-2.8ka, grass vegetation and climate became more dry; 2.8-2.3ka, coniferous forests -shrub grassland, precipitation and temperature getting down, but a higher relative humidity.

本文依托于&甘肃疏勒河冲积扇5万年来古天气环境与古水文演化&项目，以疏勒河冲积扇为研究对象，通过对疏勒河冲积扇扇缘细土带全新世古天气和古水文演变进行了20余个剖面的观测和取样、石英OSL和~(14)C测年、粒度组成和TOC分析以及孢粉鉴定，获得了以下成果和熟悉：(1)距今约13ka年来冲积扇和周边植被演化经历了6个阶段：约13.1～12.1ka，以针叶林为主的针阔混交林～灌丛草原，天气冷湿；12.1～9.2ka，灌丛草原，气温升高，降水量较低；9.2～5.8ka，疏林灌木草原，植被茂盛，温度和降水最佳；5.8～4.3ka，以针叶树为主的针阔混交林～灌丛草原，气温较高，降水减少；4.3～2.8ka，草原植被，天气变干；2.8～2.3ka，针叶林～灌木草原，降水减少，温度降低，相对湿度有所增加。

So the more precipitation does in the region , the more soil evaporation and transpiration of plant is more much, evapotranspiration in year of abundant precipitation is great than level year.

所以说在该地区降雨量越多，土壤蒸发和植物蒸腾越大，丰水年的蒸散量要大于平水年的蒸散量。

The spatial distribution of current extreme precipitation and extreme value with a return period indicate that extreme precipitation decreases from southeast to northwest, there is also a high value in Two-lakes basin, HuangHai bay and Liaotung peninsula.

从当前极端降水分布和给定重现期的极端降水的空间分布来看，我国东部极端降水的区域差异较大，总体上是由东南向西北递减，两湖盆地、黄海海湾及辽东半岛也有高值分布。

Atmospheric pressure can support a column of water up to 10 meters high.

大气压能够支持10米高的水柱，但植物可将水送得更高。

Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high.

内聚压力理论大气压能够支持 10 米高的水柱，但植物可将水送得更高。

Summary:40 Cohesion-tension Theory Atmospheric pressure can support a column of water up to 10 meters high.

内聚压力理论大气压能够支持10米高的水柱，但植物可将水送得更高。

Whether or not the AAM is balanced is one of the important conditions for evaluating an atmospheric general circulation model.

大气中角动量平衡与否一直是衡量一个大气环流图案是否合理的重要依据之一。

For the in-situ work of spectrum-measuring in the Case-II waters, especially in the Pearl River Estuary, the above-water measuring technique is recommended. When on a boat, the height of sensor can vary in a scope of 1-5m above the sea surface, and the atmospheric effects can be ignored.

对于二类水体的现场光谱测量，特别是在珠江河口水域，宜采用水面以上光谱测量法；采用船基水体光谱现场测量，探头在合理的高度(如5米)范围内变化，大气的影响可忽略不计。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。