降水

The wavelet variance verification also indicates that the first main period of the runoff of mountainous watershed in the Shiyang River Basin is 30years, and 22years and l5years are the second and third period respectively; 3 Then we also compared the total runoff of mountain watershed with climate factors of Wushaoling which station is in the mountain headstream area, such as precipitation and temperature, the data record that the correlation coefficient of annual runoff and precipitation variation over the upper reaches in the Shiyang River Basin is 0.61 ,which indicates precipitation is the main water recharge of the runoff.

石羊河流域出山口年径流的周期变化与乌鞘岭站年降水量和年均气温周期基本上都能在同一周期上下浮动，其中出山口年径流量与乌鞘岭山区年降水量相关系数为0.61，说明地表径流量主要是由山区降水补给；年径流量与山区年均气温变化呈0.28的反相关，说明该流域近50年来出山口径流与山区气温呈反比，即径流量随年均气温上升而减少，相关性暂时不十分明显。

Using the data of 171 observations from 1961 to 2003 in Northwest China, the paper analyzes the impact of precipitation resources vacillation on agriculture in Northwest China.

选取西北地区资料年代较长的171个地面测站1961～2003年历年降水量，深入研究了西北地区降水资源变化特征及其对农业生产的影响。

However, pressure-type vacuum flask in irrigation, due to the formation of precipitation by the "scale" for the human body is harmful.

然而，压力式灌溉真空瓶，由"规模为人体"由于降水的形成是有害的。

The land vegetation influence of precipitation is a complex nonlinear coupling process and need to do further research on it.

地表植被对降水的影响是一个复杂的非线性耦合过程，需要做进一步的研究分析。

No long-term because of volcanic eruption, volcanic gradually weathered, with the deposition of volcanic ash and dust accumulation of mixed and formed a rich in potassium, phosphorus and other elements of the fertile soil, coupled with more rainfall here, the crater of a south-easterly direction there are gaps, and the sun can radio Income, so long played a lush forest.

由于火山长期没有喷发，火山岩逐渐风化，同火山灰及沉积的浮尘积聚混合，形成了富含钾、磷等元素的肥沃土壤，加上这里降水较多，火山口的东南方向有缺口，阳光可以射入，所以长起了郁郁葱葱的森林。

The precipitation process was due to the meeting of the Huabei cold vortex and the shear line system along the Changjiang River.

分析了1999年5月17～18日，由华北冷涡与长江中、下游切变线系统在山东境内交汇形成的一次较强的降水过程。

The results indicated that the effect of deep warm-wet air coming along the behind subtropical high , moving eastward deepening upper trough , shear line and cyclone trough was caused in Zhuanghe , but no strong thunderstorm . The main impact of system is surface cyclone trough ; Low vortex , shear line in 700hPa , 850hPa strengthen the lower convergence , forming a strong momentum of increase and pieces of water vapor ; strong and wide potential pseudo-equivalent temperature frontal zone lied in Zhuanghe area , the establishment of potential instability are indispensable conditions for producing heavy rain .

结果表明：受副热带高压后部深厚的暖湿气流及西风带高空槽、切变线及气旋倒槽等动力系统共同影响，庄河地区出现了大暴雨天气，但没有出现强雷暴，此过程主要影响系统是地面气旋倒槽；700hPa、850hPa低涡、切变线使中低层辐合加强，形成了较强的动力抬升和水汽辐合；庄河地区处于强而宽的假相当位温锋区中，位势不稳定的建立是造成此次强降水的必要条件。

The causations of heavy rain in this area are convergence in the low level and intensity of cyclonic vorticity and strong upward motion.

低层辐合和气旋性涡度的加强所产生的强上升运动造成较大的降水过程。

SSS will tell us how global precipitation, evaporation, and the water cycle is changing.

SSS将告诉我们全球的降水、水分蒸发已经水循环的变化都是如何进行的。

The results showed that this system could simulate waterlog caused by heavy precipitation very well.

结果表明：积涝预警系统能很好地模拟由于强降水而造成的积涝情况，模拟的积水范围和深度与实况基本吻合。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐