降水量

The conditional probability density functions of daily precipitation in 16 stations of Guangxi in Summer are estimated and then the probability distributions of maximum amount of daily precipitation in 1-20 days are recurrented by using daily amount of precipitation data set.

对广西16站用6、7月逐日降水量资料估计了日降水量的条件概率密度函数，并递推得1-20天内最大日降水量的概率分布。

The paper apply the map of precipitation,terrain and topography in Jinn province as a basic material.

本文以吉林省年降水量图、地势图、地形图为基本资料，通过年降水量、地势、地理位置间的相关分析，吉林省降水分布特征的主成分分析，探讨了吉林省年降水量空间分布规律。

The monthly runoff of all the age classes was proportional to the mean monthly rainfall.

不同龄级径流的月变化规律和降水量一致，降水量大的月份，径流量也大，4—8月的降水量占年总降水量的62.2%，径流量占年总径流量的75.4%，其中Ⅰ、Ⅱ、Ⅲ、Ⅳ龄级在4—8月的平均径流系数分别为0.3784、0.3224、0.2790和0.2634。

Also, by contrasting the daily、 mensal and annual precipitation interpolation errorrespectively between SIA and the other methods, we know that the interpolation effect of SIA is better than others, and its accuracy is preferable in the mass.

并且，对用逐步插值法得到的年降水量、月降水量以及日降水量误差分别与用其他方法得到的误差对比可知，总体上看，逐步插值法的插值效果较好，精确度较高。

We gain the distributing instance as a whole by the spatial analyse of the daily、 mensal and annual precipitation.Then, we adopt mean error、 mean absolute error、 mean relative error、 and the root mean squared interpolation error and the correlative coefficient as the determinant standard of interpolation effect. The results show that the mensal precipitation effect of SIA is the best, and the daily precipitation effect is worse reversely.

然后，对年降水量、月降水量以及日降水量的SIA结果采用平均误差、平均绝对误差、平均相对误差、插值平均误差平方和的平方根误差以及相关系数作为判定插值效果的标准，并得到以下结果：月降水量的SIA效果最好，日降水的相对较差。

The annual average precipitation 654.4mm, uneven rainfall distribution, rainfall accounted for 7,8,9 months of 55.5% of precipitation throughout the year.

年平均降水量654.4mm，降雨分布不均匀，7、8、9三个月降水量占全年降水量的55.5%。

Precipitation. More precipitation more species quatities of subaerial algae are.

降水量。降水量少的地区，其亚气生藻类的数量多于降水量多的地区的亚气生藻类种类数量。

In view of it, the author analyses the climatic change in Dalian and comes to a series of conclusions: the climate has the trend of warming and rainless; the average ...

采用气温线性增长率与距平百分率等方法进行分析后，得出近五十年来大连市气候有向暖干化发展的趋势；年平均气温有上升趋势，而年降水量有下降趋势；冬季气温对年均气温拉动作用明显，而夏季降水量减少对年降水量减少贡献率最大等结论。

Based on cloud seeding data on April 5,2002 in Henan province,cloud seeding effects were evaluated by six methods,i.e.double contrast method of regional rainfall tendency control,regression analysis method of regional tendency correlation,multiple regression analysis method of regional tendency covariant,floating control historical regression method,cluster-analysis-based floating control historical regression method using rainfall as a covariant and CA-FCM using rainfall and atmospheric perceivable water as covariants.

根据2002年4月5日河南省人工催化增雨作业数据，分别采用作业区域趋势对比双比分析评估方案、区域趋势相关回归评估方案、区域趋势协变量多元回归评估方案、FCM评估方案、以降水量为协变量的CA-FCM评估方案和以降水量与整层大气可降水量为协变量的CA-FCM评估方案进行效果评估。

The outcomes show that a the correlation between ELNINO and precipitation of Shandong is remarkable and the influence of ELNINO or La Nina to the amount of precipitation of coastland in Shandong is much greater than that of the inland. Shandong precipitation is in a trend of reduction during the happening year of ELNINO and the precipitation is in a trend of increase during the happening year of La Nina; b whether is ELNINO or La Nina, the influence to the precipitation of Shandong is mainly concentrated in summer and autumn, almost no influence in spring and the influence to precipitation trend in winter and whole year is just contrary and; c the dry year of Shandong Province mainly happens in the continuous ELNINO years or the next year of La Nina and floods basically happens in La Nina year or the next year of La Nina.

结果表明：①厄尔尼诺与山东省降水相关性显著，无论是厄尔尼诺还是拉尼娜，它们对山东省沿海降水量的影响远大于对内陆的影响，厄尔尼诺发生的年份，山东省降水量呈减小趋势，而拉尼娜发生的年份，降水量呈增大趋势；②无论是厄尔尼诺还是拉尼娜，对山东省降水量的影响主要集中在夏季和秋季，对春季几乎没有什么影响，对冬季降水趋势的影响与全年的影响正好相反；③山东省的干旱年份主要发生在连续性厄尔尼诺年或者厄尔尼诺的次年，而洪涝基本发生在拉尼娜年或拉尼娜的次年。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。