查询词典 level surface

And then the effect of precipitation to water and heat character of soil is analyzed. The results indicate that the level which precipitation effect water and heat character of soil is different under different precipitation intensity. The affect degree of precipitation to surface physical variate is similar in winter and in summer, but the time that soil return to normal state is different, which in winter is longer than in summer.

其次分析了降水对荒漠土壤水热性质的影响，结果表明：不同大小的降水强度对地表物理量的影响不同；冬季和夏季相比，降水对地表物理量的影响差不多，但冬季的土壤状态的恢复时间要长得多；土壤湿度和反照率的驰豫期与降水都有很好的相关。

To simulation of weather patterns, the capability of stimulation to 850hPa is not as good as the one to 500hPa, which may be caused by underlying surface. In addition, the capability of stimulation to 48h is also not as good as the one to 36h. By analysis of result of stimulation to heavy rainfall happened on 8 July, 2003, we have found that rain belt location and its heavy rain core amounts in sensitivity run are preferably displayed by MM5V3. Analyses indicate this event was in close relationship with the southwest low vortex moving to east from the Tibetan Plateau and low-level jet in front of vortex and shear line.

模拟结果总体的TS评分、大雨以上准确率及暴雨以上准确率较MAPS模式都普遍更高；在对天气形势场的模拟能力方面，模式对850hPa上天气形势场的模拟效果不如500hPa上的模拟效果好，其可能原因是受下垫面的影响所致，并且总的看来，36小时的模拟效果优于48小时的模拟效果。

When on the prowl the cr ow glides smoothly and rapidly through the air, often changing his direction, no w flying close to the surface, anon mounting high, but oftenest keeping nearly on a level with the tree tops.

在觅食的时候，这种乌鸦在空中平稳而迅速地滑翔着，经常会改变方向，一会儿贴近地面，一会儿又飞升得很高，但它一般会保持着大概与树梢平齐的高度。

On the basis of computational energetic results at CCSD/6-311-H-G//MP2/6-311-H-G** plus zero point energy correction level of theory the addition reaction channel on the singlet surface dominates over the H-abstraction channel on both singlet and triplet surfaces.

分析整个反应体系的势能面，总结出单重态的C_2与H_2O的加成反应较单重态和叁重态的夺氢反应容易，是主要反应通道，生成CCOH_2。

In addition to the research on the optimum conditions of ultrasound pretreatment and zymolysis, the effects of NaOH concentration, temperature, use level and reaction time on the yield, the purity and protein content of β-1,3-glucan were studied by response surface method.

采用超声-酶-碱法从啤酒废酵母中提取β-1，3-葡聚糖，在超声波预处理和酶解最佳条件的同时，利用响应曲面法研究分析NaOH浓度、温度、用量和时间对β-1，3-葡聚糖得率、纯度和蛋白质含量的影响。

These dendritic cells with a normal level of MHC II and CD86 surface marker and increased MLR stimulation adoptively transferred immune tolerogenic effects in NOD-SCID mice, which was associated with significant greater IL-10 production and CD4 CD25 T differentiation from splenocytes compared with NOD-SCID control recipients.

将此DC和糖尿病细胞过继转移至NOD-SCID免疫缺陷鼠，可增加CD4 CD25 T细胞分化，促进IL-10分泌，并降低NOD-SCID 鼠糖尿病发生率。

Based on consider hereinbefore, this dissertation discusses several aspects on the problem of the sustainable and optimum exploitation of groundwater resources as follows:①reviewed entirely the origin and evolvement of the concept "sustainable development", stated and commented the study status in queue on"sustainable development"around national and international range, thorough discussed the science connotation about the concept "sustainable development";②looked back and commented across-the aboard some furthest basic concept and proposition related to groundwater resources, put forward self opinions on a few existent mistake points of view and chaos understandings;③expatiated entirely on the content and meaning of the theory of changeable groundwater resources system, contrast with the traditional methods of groundwater resources calculation and evaluation, combined example to show the application of this theory;④thorough analyzed the difficult and complexity to forecast the groundwater resources, fully stated the traditional methods of groundwater resources forecasting, pointed out the characteristic and applying condition of these forecasting method, introduced the main ideas and methods of wavelet analysis developed recently, and the MATLAB software be known as the fifths era computer language, and its accessory wavelet analysis toolbox, applied these methods and tools to analyze the groundwater dynamic curve, adopted the B-J method and Morte-Carlo method, combined with the theory of changeable groundwater resources system, discussed the new view on the forecast of groundwater resources;⑤synthetically analyzed the characteristics and limitations of the present all kind of groundwater manage model, combined mathematical programming, mathematical statistics, random process and the theory of variation system of groundwater resources on the unite optimum attempter of surface water and groundwater, emphasized how to make the model more nicety, more simple, more practicality;⑥analyzed the inside condition and outside condition to assure the sustainable and optimum exploitation of groundwater resources, the inside conditions are the follows: correct resources idea, scientific methods of resources calculation and evaluation, credible forecast methods of resources, exercisable measures of resources management, the outside conditions are the follows: the development idea of high layer, the transform of manage system, the matched policy and rule of law, the adjusted of economy lever, the improve of cultural diathesis, the boosting up of water-saving consciousness and detail measures, the control of population rising, the prevention and cure of water pollute, the renew and rebuild of ecology;⑦scan the sustainable and optimum exploitation of groundwater resources from the high level of metagalaxy, earth system science, and philosophy;⑧point out the more directions on groundwater resources.

它将为制定水资源的可持续发展目标和战略决策提供科学依据，为制定社会、经济可持续发展战略提供理论基础。基于以上考虑，论文主要从以下几方面对地下水资源可持续开发问题进行了比较深入的探讨：①全面回顾了&可持续发展&概念的由来与演变，对国内外&可持续发展&的研究现状进行了述评，并对&可持续发展&概念的科学内涵进行了深入探讨；②对涉及地下水资源的一些最基本的概念和命题进行了全面的回顾和评述，对目前仍然存在的一些错误观点和混乱认识提出了自己的见解；③全面阐述了地下水资源变值系统理论的内容和意义，并与传统的地下水资源计算评价方法进行了对比分析，结合实例具体说明了方法的应用；④深入分析了地下水资源预测预报工作的极端重要性和复杂性，对传统的地下水资源动态预测方法进行了全面的评述，指出了各类预测预报方法的特点及适用条件，对最近二十多年刚发展起来的小波分析技术的主要思想和方法及其应用范围，以及号称第五代计算机语言的MATLAB软件和附带的小波分析工具箱进行了介绍，并应用于地下水动态过程线的分析，采用时间序列中的B-J法，蒙特卡罗方法，与地下水资源变值系统理论相结合，探讨了地下水动态资料分析和地下水资源预测预报的新思路；⑤综合分析了现今各类地下水管理模型的特点及缺陷，将数学规划、数理统计、随机过程等与地下水变值系统理论相结合进行地表水地下水或多水源的联合优化调度，使模型更准确、更实用；⑥对保证地下水资源可持续开发的内部条件和外部条件进行了分析，内部条件主要是正确的资源观，科学的资源计算与评价方法，可靠的资源预测预报技术，可操作的资源管理措施，外部条件主要是高层发展思路、管理体制的变革、配套的政策法规、经济杠杆的调节、人文素质的提高、节水意识的增强及具体节水措施、人口增长的控制、水体污染的防治、生态的恢复和重建等；⑦从宇宙科学、地球系统科学及哲学的高度审视地下水资源的可持续开发；⑧指出了地下水资源可持续开发的进一步研究方向。

On a purely surface level, his sound seems to be all about his voice, which often reaches a fragile, breathy register, as if his body is so exhausted with emotion that the lyrics must leak out.

在纯粹表象的层面上，他的声音似乎完全是自己的嗓音——那种时常到达脆弱的、带有气声的音域的嗓音。似乎他的身体由于情感的展现变得精疲力竭，以至于歌词必须被泄露出来。

During early middle Jurassic period, Quemocuo formation in NQB was offshore lake deposition with marine feature, in SQB was shelf deposition, which indicted that an intense rifting and sea level rising with more large range, and consequently, eroding area was shrunk and deposition area was expanded.4. According to the result of stratigraphic surface features, division and correlation, and the paleographic characteristic, Qiangtang Basin during late Triassic -early middle Jurassic period could be divided into two basin developing stages with difficult tectonic nature, remnent epicontinental basin stage in Carian -early Norian of late Triassic and rifting basin stage in middle Norian of late Triassic - early middle Jurassic period respectively.

雀莫错组在羌北盆地为近海湖泊沉积，更具海相色彩：南羌塘主要为外陆棚沉积，反映羌塘盆地再次发生较强烈的裂陷作用和较大幅度的海平面上升，形成陆源剥蚀区缩小，沉积覆盖面增大的古地理面貌。4、根据地层界面特征、地层划分与对比结果和岩相古地理演化特征可将晚三叠世—中侏罗世早期羌塘盆地划分为两个不同构造性质的盆地发展时期，分别为晚三叠世卡尼期—若利早期的残留内陆表海沉积盆地发展与消亡时期和晚三叠世若利期中晚期—中侏罗世早期的裂陷盆地的形成与发展时期。

The above results are of general importance and can be used to improve the solder joint reliability of surface mount components with castellated solder fillet, the design level and the manufacturing process in SMT.

本文研究从提高SMT焊点可靠性、提高组装密度和避免焊点缺陷的角度出发，对高可靠性SMT焊点形态的设计和评价建立了四点规则，对提高有边堡钎料圆角形态表面组装元件的焊点可靠性、提高SMT工艺设计水平具有普遍意义。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷