查询词典 researches

On the basis of summarizing the status quotation of related researches at home and abroad, problems in related researches and studies are analyzed and the important research fields and contents in marsh sedimentology are chosen:Establishing different model of marsh sedimentation, to support marsh definition and classification from sedimentology; Advancing theory and quantification, to analyze formation process of marsh from quality to quantity methods; Applying modern sampling system and setting up standard sedimentation profiles; Strengthening the research of gleying marsh inland and its recent process and evidence derived from sedimentation profile; Enlarging geography fields and comparing between spatial and temporal research, and enforcing regional short timescale and highresolution environmental change; Paying much more attention on correlations between watershed environment and information derived from marsh sedimentary records and especially on their controlling mechanism.

主要从学术文献、权威机关与科研机构两个方面对相关的国内外研究现状和进展进行总结，针对国内外研究现状和存在的问题提出了今后研究的重点：建立不同成因的沼泽沉积环境模式，从沉积学角度对沼泽定义及分类提供支撑；注重理论提升与定量化，使沼泽形成过程分析从定性描述走向定量化；注重现代化采样系统的应用与标准沉积剖面的建立；加强内陆潜育沼泽研究，注重现代过程与沉积剖面证据；扩大地理覆盖面，加强时空对比，加强沼泽区域性短尺度、高分辨率环境演化研究；深化沼泽沉积信息与流域环境变迁耦合机制研究。

Applications of face-fired boilers are not so many on our country's industry, So the researches on it, especially on high-duty boilers (for example 330MW), are very limited. And further study is needed to make up for domestic vacancy about this. Author of this paper has done some researches on 330MW boiler both in theory and experiments by applying Computer Aided Test principles. Numerical simulation is dominating part of CAT, also the core of this paper.

对冲燃烧锅炉在我国的应用并不是很多，所以对它所进行的研究极为有限，特别是对于较大容量(如330MW)的机组，相应的试验和数值计算都很少，很多的问题仍等待进一步的研究，本文正是为了填补国内的空白，从理论和试验的角度，运用计算机辅助优化数值试验原理和方法，对330MW对冲锅炉进行研究。

In the previous researches, it was treated only as a tool to generate strings. It's biases during string generation was ignored. These biases include: The strings were ill-proportioned according to path, what the learning strings expressed was not what the testing strings tested, and the learning strings in each path couldn't express the rules of this path. So the string set of previous researches didn't express the grammars designed by experimenters completely, accurately and exclusively.

在以往研究中，研究者仅仅将人工语法作为现成的实验材料，以获取自己所需的刺激字符串为最终目的，忽略了生成字符串过程中可能出现的种种偏差，造成实验用字符串分布不均，测验字符串与学习字符串不对应，各线路学习字符串样例亦未能完整表达规则，因而生成的字符串集已经无法完整、准确、唯一地体现人工语法。

To make a comprehensive view of metapopulation researches, we folly analyze and summarize the present concepts, theories and models of metapopulation in this paper, which primarily includes the dynamical models and simulation approaches of single and competitive metapopulations. Based on the Levin's patch occupant model, the center framework of metapopulation researches, primary principles and mechanisms are discussed. First, Levins rule: the fraction of empty patch will remain constant with habitat destruction as long as metapopulation survives. This rule implies that empty patches have determinant effects on persistence and conservation. Second. Allee effect of metapopulation is incurred by establishing difficulties and dispersal costs, which is important to the studies of reserve area and the minimum available metapopulation size. Third, we analyze the rescue effect that immigrants can reduce the extinction risk of the presented local population. Rescue effect can leads to the improvement of metapopulation sustainability and the decrease of fraction of empty patches. Fourth, the coexistence mechanism of two competing metapopulation is discussed, which suggests that competition-colonization trade off may be prevalent in competing systems. Finally, extinction debt ob tamed from coexistence mechanism is given, which depicts the lost of species richness in the future for the current habitat destruction. After theoretical discussion, we present two popular simulated approaches in metapopulations: probability transition model and stochastic process model.

为了能总观集合种群进展的全局并开展进一步的工作，首先对集合种群的已有概念、理论和模型做了全面的分析和总结；其次对集合种群的发展和概念进行了探讨，以集合种群模型的中心框架：Levins的斑块占据模型为基础，展开对其它原理、效应和机制的探讨；主要包括了Levins原理，即当生境进到破坏时，空斑块比例在集合种群灭绝前保持不变，然后还分析了Allee效应（集合种群的Allee效应主要是由于建群困难和扩散损失造成的）；第三，分析了援救效应：迁人个体可以降低斑块中现有局域种群的灭绝风险，援救效应会增强集合种群的生存力，使空斑块比例下降第四，探讨了两竞争集合种群的共存机制，即竞争－侵占妥协，其共存机制为空间生境中物种共存提供了有力的理论解释。

And asa result of remote location and harsh environment conditions, the researches on theZoige wetland are relatively rare, especially the researches on the methane emissionfrom littoral zone of alpine lakes.

由于地处偏远、自然环境条件恶劣等多方面的原因，针对若尔盖湿地的科学研究资料一直以来还非常缺乏。

Many researches on characteristics and cultural connotation of locatives have been done for a long time, as well as the systematic descriptions and researches.

一直以来，语言学界对于方位词的性质、文化内涵有较多的研究，方位词系统性的描写和研究也比较多。

In the term of transform of institution, cultural and positivism in urban studies of China today, the view of researches must pay attention on self-organization rules of urban space with socialites, in order to realize the unity of subjectivity and objectivity and the scientific researches of urban space with social logical.

提出在当前国内城市空间研究呈现制度文化转向和科学实证转向的双轨转型时期，通过对蕴含社会性的城市空间自组织规律的研究，有利于实现研究对象主客体属性的统一，使城市空间研究具有社会逻辑下的空间科学性。

The research of lift-off velocity distribution function of saltating sand grain would redound to solve the random problem of single lift-off sand grain from sand bed and promote the combination between microcosmic researches and macroscopical researches of Aeolian sand movement.

沙粒起跳初速度分布函数的研究成果将有助于解决在错综复杂的沙床面上单颗沙粒运动的随机性问题，初步实现微观与宏观研究的结合；跃移沙粒降落速度分布函数对于反演跃移沙粒与沙床面碰撞的恢复系数，深入理解碰撞过程具有十分重要的意义，同时也将促进击溅函数的修正工作。

The existence of so many anomaly stages is probably observed for the first time in numerous cases of satellite thermal infrared researches on earthquakes;③ Each stage lasted quite a long time, with the longest one spanning 13 days;④ An evident geothermal anomaly gradient was distributed along the Longmenshan seismic fracture zone, and such a phenomenon might also be discovered for the first time in satellite thermal infrared earthquake researches.

这在众多的卫星热红外地震研究案例中，可能是迄今为止异常阶段最多的一次；③、单个阶段的持续时间长：最长达13天；④、如此沿龙门山地震断裂带分布的明显的地热增温异常现象，可能在卫星热红外地震研究案例中是首次发现。

The paper researches two models for optimized management of slab-yard, and researches respective application about putting-in stock and model of taking-out stock. In the model of putting-in stock, the paper considered the cell of hot-rolling when making plan of putting-in stock, swings in the model of putting-in stock with the parameter 85, which indicates whether the slabs belong to the same hot-rolling cell. In the model of taking-out stock, The paper classed the slab-yard location according to the practice of the factory, based on which, the paper brings forward optimized turned-out algorithm founded on experts system, and the result of the experiments shows that the number of the turned-out pile is greatly reduced with the new algorithm.

文章重点研究了板坯库优化管理中的入库计划和出库计划编制问题，对两个决策模型：入库决策模型和出库决策模型进行了应用研究，其中在入库决策模型中，编制入库计划时就考虑了热轧工序轧制计划单元，在入库决策模型中添加&同一热轧单元&参数δ_5；在出库决策模型中，基于实际应用现场对板坯库库位进行分类，提出基于专家系统的板坯最优倒垛算法，实验结果表明提出的算法大大地降低了倒垛量。

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