Atmospheric precipitation

The opposite of evaporation is precipitation, such as rain, by which water is added to the ocean.

导致海洋的盐度变化的基本过程有三个，其中之一是通过蒸发的方式即把液态水转化为水蒸气来减少海洋中的水分。

The opposite of evaporation is precipitation, such as rain, by which water is added to the ocean.

一般来说，在阳光很强烈的热带地区，海水的盐度略高于世界上其它没有热带那样多的蒸发的地区。

Analysis show a sharp decrease in annual wind speed in most part of North China in recent ten years which is more obvious than that of temperature and precipitation, and this may lead to the decrease in sand dust storm frequency.

分析结果表明了近10年来北方大部分地区的年均风速于快速下降过程，其变化幅度大于气温和降水等的变化，在这种趋势下可能会导致沙尘暴发生频率减少。

Key factors affected wheat midge occurrence of Guanzhong district are the average daily temperature in January, the average daily temperature in March (X3), the average daily temperature in August of last year (X5) and precipitation in February (X8).Six prediction methods are selected to predict occurrence level of wheat midge.

本论文利用关中地区1933～2000年小麦吸浆虫的发生资料以及气象资料，通过逐步回归法筛选出了影响小麦吸浆虫发生的主要气象因子，即一月份平均温度(X_1)、三月份平均温度(X_3)、前一年八月份平均温度(X_5)、二月份平均降雨量(X_8)。

The results show that the proportion of the soil evaporation to the precipitation is greater than 60% in wandering dune and semi-fixed dune, and it is 44.8% in fixed dune.

研究指出，自然条件下该区土壤蒸发占降水的比例在流动沙地和半固定沙地大于60%，在固定沙地为44.8%。

The precipitation was the main climate factor affecting interannual variation of soil water and land surface evaporation.

陇东黄土高原的土壤干旱化与地表蒸发关系不大，降水的逐年减少可能是土壤干旱化的根本原因。

The precipitation was the main climate factor affecting inter-annual variation of soil water and land surface evaporation.

陇东黄土高原的土壤干旱化与地表蒸发关系不大，降水的逐年减少可能是土壤干旱化的根本原因。

The direction of travel throttle valve angle is the horizontal direction, the level of flows into the medium, the level of outflow, easy to clean media is not removed, flow path at the same time simple and very little room for medium precipitation, therefore, prevent the valve angle stroke Deluge Valves, Fire Protection of good performance.

角行程阀节流的方向就是水平方向，介质水平流进，水平流出，容易把不干净介质带走，同时流路简单，介质沉淀的空间也很少，所以角行程阀防堵性能好。

The δ〓O for both of them are changed due to water/rock interaction at water/rock weight ratios of larger than 0.1, and the calculation indicates that, in this case, the influence of water/rock interaction on the δD value of the fluid is minor. In the upper part of the geothermal system, the upward ore forming fluid mixes with low temperature groundwater with very low salinity and δ〓O, which may cause the precipitation of metals.

根据氢、氧同位素研究结果，嵩溪银锑矿床的上升成矿流体是由岩浆热液与循环地下水热液混合而成，这种混合成因含矿热液上升到地热系统上部与低矿化度、低δ〓O的低温地下水发生了不均匀混合，这种混合作用导致金属矿物沉淀，但成矿物质是由上升成矿流体带来的。

Simulation of a typhoon case presents assimilating radar data advanced prediction of typhoon precipitation, intensity and track, enhanced the meso-P scale system on typhoon spiral rain-band.

4登陆台风试验结果表明同化雷达资料可以提高台风降水、强度和移动路径的预报水平，并改善初始场中台风螺旋雨带上的中-β尺度对流系统的结构。

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。