查询词典 heavy rainfall

However, the latter more complicated, contrasted between radar data and routine observatory data. It can be seen that the classification of the storm rainfall echo according to 850hPa effective system is more ideal, the storm rainfall echo is classified into storm rainfall of trough and storm rainfall of shear line, while storm rainfall of shear line includes storm rainfall of warm shear line and storm rainfall of cold shear line, and their radar echo features are investigated. It is shown that different storm rainfall style is distinct clearly on the echo structure and feature.

而伴有低空急流暴雨的回波特征较复杂，通过对雷达资料及常规观测资料的对比分析，发现利用850hPa的影响系统对暴雨回波分类比较理想，将暴雨过程分成低槽暴雨和切变线暴雨回波两类，切变线暴雨又可以分为冷式切变线暴雨和暖式切变线暴雨，分别分析、研究了不同类型暴雨的多普勒天气雷达回波特征，结果表明不同类型暴雨的回波结构和特征具有明显的区别。

The south and north of the windward side of the Annam Cordillera show great difference in the diurnal variation of rainfall, which is related to migration of rainfall. Rainfall over coastal areas of the Thailand Gulf in 01-04LST migrates to inland northeastwards and then heavy rainfall occurs over areas southwest of the Annam Cordillera in 16-19LST, after that heavy rainfall migrates northwestward along the Annam Cordillera to areas northwest of the Annam Cordillera in 01-04LST in the next day. The migration of rainfall results in different characteristics of diurnal variation on the windward side of Annam Cordillera.

长山山脉西侧迎风坡的一南一北两个区域，表现出明显不同的降水日变化特征，其原因与降水的传播有关。01-04LST，降水大值区出现在泰国湾东部沿海，并向中南半岛岛内传播，16-19LST在长山山脉西南侧形成降水大值区，之后降水进一步沿山脉向西北传播，并于次日01-04LST传到长山山脉西北侧区域，通过降水的这种传播特征从而导致长山山脉迎风坡一侧不同的降水日变化特征。

The study probe into at when extreme rainfall happenning incident research purpose department on city, estimate its flow of flood crest to defend and provide disaster relief the reference carried on the exercise of in follow-up ; While estimating the the depth of extreme rainfall , use separately: World Meteological Organization statistic method, storm transposition and dew point adjustment method and average recurrence interval rainfall depth factor method, inquire into and act as river valley wutu the upper reaches of Keelung and collect in the water area separately, wutu station with flood-diversion stands in the Huo-Shao-Liao station before Yuan-Shan-Tzu flood-diversion, the depth when the extreme rainfall happens separately, step forward and mix the set of design hyetograph by extreme rainfall ,finally,mix geomorphologic instantaneous unit hydrograph afterwards, in order to estimate the flow of flood crest produced cause by extreme rainfall incident .

本文之研究目的系探讨当极端暴雨事件发生於都会区时，推估其洪峰流量以作为后续防救灾演练之参考。在推估极端暴雨之降雨深度时，分别采用：世界气象组织统计法、暴雨移置与露点调整法及平均重现期距雨量因子法，分别推求当基隆河流域五堵上游集水区，员山子分洪前之火烧寮站与分洪后之五堵站，分别发生极端暴雨时之雨量，进一步将极端暴雨量套配设计雨型，最后再搭配地貌型瞬时单位历线模式，以推估因发生极端暴雨事件而产生之洪峰流量。

The key technologies of Grid Method including grid divided in basin, impact radius of rainfall and number of reference rainfall stations have been discussed with example. The parameters of Grid Method have been selected through trial and error. Using simple random sampling to simulate the failure to collect rainfall, the relation between surface rainfall calculation error and station density, station distribution, uneven spatial distribution of rainfall has been sought.

论文探讨了流域网格剖分、降雨影响半径、搜索半径范围和参证站数量等关键技术，研究了网格法参数的优选，并采用简单随机抽样模拟降雨缺测情况，给出了面雨量计算误差与流域站网密度、均匀度、降雨分布不均匀性指标的关系。

The seasonal rainfall distribution is uneven, with 78% of the rainfall concentrated in the 5-10, of which 7-9% of the annual rainfall is 47% of the rainfall, and when there is heavy rain.

降水的季节分配也极不均匀，有78%的雨量集中在5～10月，其中7～9月的雨量即占全年雨量的47%，且时有暴雨出现。

Results show that the heavy rainfall event occurred under the favorable environmental conditions, resulted from the interaction of mid-and low-latitude systems. The mesoscale convergence and the mesoscale low triggered the occurrence of the heavy rainfall. Rain clusters bringing the heavy rainfall were related to meso-β systems. The meso-β mesoscale rain clusters appeared to the north of the cyclone center on 1000 hPa after filtering and to the south of the meso-α convergence line on 850 hPa.

分析表明：暴雨发生在高低空流场及中低纬系统配置非常有利的天气背景下，是多种尺度天气系统相互作用的结果；在对流性不稳定层结中，冷空气沿等熵面侵入到中尺度辐合系统中，激发了中尺度低涡的迅速发展，在孟加拉湾和南海源源不断输送的水汽配合下，导致了暴雨的发生；中β尺度对流雨团发生在滤波后1000 hPa 等压面的低涡中心北侧和850 hPa 中α尺度辐合线南侧，呈现暖式切变的降雨特征。

Results show that the effective rainfall in Taiwan was more than 80% of the mean annual rainfall. The distribution types of the maximum 30-minute rainfall intensity (I30) in southwest and northeast area were leptokurtosis and platykurtosis respectivily, and there was a good relationship between I30 and mean rainfall intensity.

研究结果显示，台湾地区之有效雨量占年平均雨量之80%以上，其最大三十分钟降雨强度(I30)之分布型态，西南部属低阔峰分布，东北部则属於高狭峰的分布型态，且I30与平均降雨强度有较佳的相关性。

On the base of probabilistic and statistics results of joints and cracks, the Author modifies Block Theory. The sliding probability of Key Block is I A RSTR A CT F2 ? 5.It is put up forward that GM(l,1) Model to predict Amount of rainfall, and Markov Chain to modifY GM( 1,1 )predicting result, and then a theoretical predicting Model of amount of rainfall is firstly built. This model is applied in a situ example. It is proved that the model is very useful to predict amount of rainfall ,when ordinal array of Amount of rainfall changes in unexact index rule.

首次将节理裂隙视为有限长，借助有关岩体节理裂隙概率统计研究成果，对块体理论进行修正，确定了关键块体变为滑动块体概率计算公式为 5、本文提出采用GM（1，1）模型预测降雨量，而采用Markov链进行修正的方法，首次用该方法建立了大气降雨量预测的理论模型，并结合实例进行具体应用，解决了当降雨量的时间序列呈不严格的指数规律变化时，大气降雨量的预测问题。

The main factors influencing the duration of preferential flow are the duration and the amount of rainfall. The duration of preferential flow is very evidently positively related to the duration of rainfall, and evidently positively related to the amount of rainfall. The main factor influencing the peak of preferential flow is the amount of rainfall, which is evidently positively related to the peak of preferential flow. The soil characteristics of different soil layers are very different, which induced the lateral preferential flow.

3降雨和土壤物理特性是影响优先流的重要因子，影响优先流流量的主要降雨因子是降雨总量，两者呈现出极显著的正相关关系；影响优先流历时的主要降雨因子是降雨历时和降雨总量，优先流历时与降雨历时为极显著正相关关系，与降雨总量为显著正相关关系；影响优先流峰值流量的主要降雨因子是降雨总量，两者为显著正相关关系。

Based on the evaluation system, the plants whose relative remediation age was between 0~10 years were named as"Hyperaccumulator"and those between 10 ~ 50 years were named as"Accumulator".7 In the experiments six kinds of substrates were mixed with different solid wastes and the absorption and enrichment of plants on heavy metal Cd was studied. The results showed that relative remediation age was an ideal index to evaluate the capability of the phytoremediation on heavy metals, because it took into account more factors which affected the absorption evaluation effects than others, such as the heavy metal content and the biomass of the over-ground part of plants, the heavy metal content and the whole gross in substrates, harvesting frequency of plants and the environment standard of heavy metal. This made relative remediation age be suitable to the sorption capability evaluation of not only different plants on one heavy metal but also one plant on different heavy metals.8 It can be drawn from the relative remediation age of heavy metal Cd that the absorption capability of different plants was not same.

以相对修复年限为评价指标定义相对修复年限为0-10年的植物为"超富集植物"，10-50年的植物为"富集植物"。7在由不同废弃物按一定的比例混合配制的六种土地复垦基质上，系统地研究了几种植物对重金属镉的吸收和富集情况，结果表明，相对修复年限既适用于不同植物对同一种重金属元素的吸收能力的评价，又适用于同一植物对不同重金属元素的吸收能力的评价，是衡量重金属元素植物修复效果的理想指标。8从不同植物对同一基质重金属镉的吸收和富集能力看，不论是经过多年种植的基质，还是第一次种植的基质，小白菜和油菜都是相对理想的植物；而黑麦草、高羊茅和苜蓿的吸收效果并不理想。

Objective To investigate the relationship between ovum fertilization rate and sperm morphology, acrosome reaction in IVF and to explore the influence of parameters of sperm on fertilization rate.

目的 研究体外受精(in vitro fertilization，IVF)中精子形态、顶体反应与卵子受精率之间的关系，分析精子各参数在IVF受精率方面的参考意义。

A: I hear Mr. White wants to run for the Presidency!

我听说怀特先生要参加总统竞选！