查询词典 precipitation

The development mechanisms of backflow precipitation are analyzed with the reasonable simulation results. The results show that dynamical frontogenesis plays a very important role in the development of backflow snowstorm. The frontogenetical secondary circulation directly causes the snowstorm.

在回流暴雪形成与发展的过程中，动力锋生机制发挥了重要作用；其产生的锋面次级环流是造成这次暴雪的主要原因；降水过程中，雨雪相态的转变与温度廊线有直接关系，随着降水由雨转为雪，雪水混合比增大迅速且其高度有所降低。

Millimeters average annual precipitation, annual sunshine hours for 2709 hours, frost-free period more than 180 days.

年平均降水量817毫米，年日照时数为2709小时，无霜期180天以上。

This experiment, the extract from fresh seaweed polysaccharide reference thermal flooding of alcohol, iodine waste material after the extraction of crude to fucose sulfate polysaccharide extraction, classification after the ethanol precipitation method used for crude and industrial pre-kelp dealing with separation of water purification, and anthrone-sulfuric acid method of its total sugar content.

本实验，采用从鲜海带中提取多糖的热水浸提法对醇、碘提取后的废弃料进行粗品岩藻多糖硫酸酯的提取，后采用乙醇分级沉淀法对粗品和工业海带预处理水进行纯化分离，并用硫酸蒽酮法测定其总含糖量。

Using the map algebra function of the ARC/INFO system,a map of flood hazard assessment for Xiang River Basin is constructed by taking various natural factors,such as precipitation,topography and historic flood frequency,into consideration.

在综合考虑降雨量、地形以及历史上洪水灾害发生频次等自然因素的条件下，利用地图代数分析得到了湘江流域洪水灾害危险性评价图；在综合考虑人口密度、耕地面积百分比、人均GDP和单位面积水库和塘坝容量等社会经济指标的基础上，利用模糊综合评判法得到了湘江流域洪水灾害脆弱性评价图。

Some fundamental atmospheric variables including surface air temperature, sea level pressure and precipitation are examined to evaluate the ability of the GOALS model to simulate the contemporary climate and climate variability.

一些重要的大气变量包括表面空气温度，海平面气压和降水率用来评估GOALS模式模拟当代气候和气候变率的能力。

The results of the experiments show that High-concentration-salt precipitation method was more fit for extracting genomic DNA of Fusarium oxysporum f.

结果表明：高盐沉淀法是适合于香蕉枯萎病菌基因组DNA提取的方法。

Firstly, the GPS data in Naqu, Gaize, Deqn, Tengchong, Mengzi and Simao are processed, the change of remote sensing water vapor using six ground GPS receivers in Tibet Plateau and Yunan province are analyzed, the results based on GPS with those based on the radiosonde data are compared, and the relationships between the amount of atmospheric water vapor and the ground vapor pressure, ground temperature and precipitation are studied. It shows that the annual amount of atmospheric water vapor is about 0.2~2.0cm over Tibet Plateau and 0.5~4.5cm in Yunan province.

首先通过解算青藏高原那曲、改则和德钦以及云南腾冲、蒙自和思茅共6个站的地基GPS大气水汽探测资料，获得了这些站的大气总水汽量；分析了这些站的大气总水汽量的变化特征；通过比较那曲、腾冲、蒙自和思茅地基GPS遥感与探空结果，分析了地基GPS遥感结果的精度；同时还分析了大气总水汽量与地面气象要素之间的关系。

The experimental results show that 1,2-Octanediol has inhibitory effect on gibbsite precipitation by adsorption on the surface of seeds.

研究1，2-辛二醇对铝酸钠溶液种分过程的影响。

The experimental results show that the silicon dioxide influences the precipitation rate and morphology of gibbsite, and the (100) face of gibbsite is easier to unfold.

实验结果表明：在一定的分解时间范围内，硅能抑制铝酸钠溶液种分分解，对分解产物氢氧化铝的晶体形貌有影响，其(100)面的显露有所增加。

When the concentration of 1,2-Octanediol in the solution is less than 1.25 mmol/L, the inhibitory effect on gibbsite precipitation is limited.

添加浓度小于1.25 mmol/L时，1，2-辛二醇对铝酸钠溶液的抑制程度很小；添加浓度超过1.5 mmol/L，抑制作用非常明显。

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