查询词典 to the point of

As the complete characteristic curves of reversible pump turbine are often used to calculate the instantaneous parameters, this paper studies the characteristic curve and the wicket closure and opening law in pumped storage plants.Chapter 1 presents the importance and the necessity of this study and reviews the previous related research on hydraulic transient process and valve regulation in pumped storage plants.Chapter 2 analyzes the six collected characteristic curves of reversible pumped turbine and studies their diversification from the point of view of specific speed. The six collected discharge and moment curves with maximum efficiency have been fitted to piecewise continuous curves. This curve-fitting procedure is listed.Chapter 3 takes Liyang Pumped storage plant as an example and analyzes the effect of different characteristic curves on regulation guarantee parameters and the variety of its trochoid during the same operation status.Chapter 4 takes three pumped storage plants with different heads as examples and studies the characteristic of coordinated closure with wicket gate and ball valve and its effect on dynamic pressure in the spiral case, inlet pressure in the draft tube and the rise of rotating speed.Chapter 5 summarizes this paper and point out what should be done in the future research.

由于在过渡过程分析计算中，需要频繁利用可逆式机组的全特性曲线推求机组的瞬时参数，所以本文就特性曲线及关闭规律问题进行了研究，其主要内容如下：第1章，指出本文研究的意义和目的，回顾前人对水力过渡过程、抽水蓄能电站及阀调节的研究成果，在此基础上提出本文的研究内容；第2章，针对收集到的六套特性曲线，从比转速的角度出发来研究可逆式机组特性曲线的变化规律；并对六套曲线的最高效率流量和力矩曲线进行分段拟合，得到各分段函数的具体形式，再通过举例说明最高效率曲线的拟合步骤；第3章，以溧阳抽水蓄能电站为实例，分析讨论不同比转速特性曲线对调保参数造成的影响及对于相同工况其轨迹线的变化；第4章，结合高、中、低三水头段抽水蓄能电站，在导叶直线关闭的基础上，研究导叶与球阀协联关闭规律的特点及对蜗壳动水压力、尾水管进口压力及转速上升造成的影响；第5章，总结全文，提出今后研究的重点和方向。

This thesis is composed to the following contents: in Chapter 2, it is mainly focused on the necessity of recognition for the universe of discourse out of a new point of view, that is, its point of view on the basis of the dialectical world outlook and the regular order arrangement between relative temporal meaning and absolute temporal meaning which the professor, MA QING-ZHU have suggested in Chinese and propose the background of UGFF theory.

本文是对"的"字结构的系统的阐述，在论文中首先是显示了在"的"字结构里，其先行词组和后行词组之间的关系功能，进而是以代词的约束方向及相对时间世界与绝对时间世界之间的区别作为先行论据，提出了形式和功能统一语法（Unifying Grammar of Form and Function，简称UGFF）的基本模型。

The pioneeripionng of the Vanishing point tool for a limited period of time to realize the amazing results.

开创性的Vanishing point工具可以在很短的时间内实现令人惊奇的效果。

The major contribution of this dissertation is as follows:1 according to the format of laser scanning data, suggest the method that search the corresponding point in known vicinage region , seeks new nearly corresponding point, accelerates register speed.

本方的主要贡献如下： 1 针对激光扫描数据的格式，提出了在已知对应点的邻域内进行局部搜索，查找新的最近点对的方法，加快配准速度。

Beijing environmental problems hold severe, and atmospheric and water pollute, soil and water loss, hot island and yawp are leading problems,and take on territorial characteristic. Based on research on relativity between urban forest and these environmental problems, urban forest can effective improve environmental quality in Beijing. And for the aim of improve environmental quality, Beijing forest overlay should attain 35% at least in citywide range, and local-areas being severe environmental problem should be provided with higher forest overlay.5. Through the study on urban forest needed capacity, Beijing's forest coverage is up to par in citywide range, but montanic forest coverage, plain covered with trees and average forest area are lacking, and CO2 and O2 balance is incapable;form the point of heat and balance CO2 and O2 balance,urban forest the city zone and suburb is lack. There is urban forest developmental potential space,but the city zone and suburb area need be compensated form urban forest in circumjacent region.6. On the based of the above results and ecological network system, the author drived whole region into city area, plain and mountain area are needed at the point of planning thoughts of running-through forests and water .

根据城市森林与北京市主要环境问题的相关性分析，城市森林在改善这些环境问题中具有重要的作用，为有效改善这些环境问题，整个北京市域范围内森林覆盖率至少达到35%，并且分布比较均匀，环境问题严重的局部区域需要不同程度增加森林覆盖率。5、通过对北京市城市森林需求量研究发现，虽然在市域范围内北京森林覆盖率达到了国家标准，但是山区森林覆盖率、平原林木覆盖率、城区人均森林面积不足；从区域热平衡和碳氧平衡角度分析，城区和郊区不能满足本区域的城市森林需求量，虽然北京市城市森林具有一定的发展潜力，整体上基本可以满足城市需要，但是这些区域需要依靠周边区域城市森林的补偿。6、根据以上的研究结果，以中国森林生态网络体系建设的点、线、面布局理念为指导，以&林网化——水网化&作为优化理念，将北京市整个市域划分为城区近郊区及其辐射区域，平原区和山区三大区域，依据三大区域特点进行城市森林布局优化。

along the hairline, one arc-shaped incision about 5 cm in length with a center at the surface projecting point of the sphenoid ridge root, extending from the temples to the point 39 mm anterior to the otobasion superius, is an ideal skin incision via the pterional keyhole approach with intact frontal facial nerve.

以蝶骨嵴根部的体表投影为中心，作起于鬓角，沿发际前缘弧形向下，止于耳上基点前39 mm，位于发际内的长约5 cm的翼点锁孔入路切口，是不损伤面神经的理想切口。

From the point of view of the Cedar Tree Kingdom, this is such a short time in the overall existence it is equivalent to a blink of the eye; therefore we are already " home " from our point of view.

在雪杉树王国看来，这段时间在整体中是如此短的一瞬，就像一眨眼一般，因此从我们的观点来看我们已然回家。

The influence on vehicles after traffic accident happen in urban road net is analyzed in this paper. According to the degree of the accident, the capacity of the accident point is determined. The formula of travel time after accident when traffic demand upriver exceed the capacity of the accident point is given based on the dynamic law of waiting queue, which is regarded as the gist of circumambulating or not.

本文分析了城市路网发生交通事故对车辆行驶的影响，根据交通事故的严重程度不同确定事故地点的通行能力，按照排队长度动态变化的规律，给出了事故点上游交通需求大于事故点通行能力时事故路段行程时间的计算公式，以此作为是否诱导车辆绕行的依据。

As a new developing subject, engineering ethics usually focus on the point of view of ethics to reflect engineering, while the analysis of engineering feature and principle stress a new point of view of study on ethics. The principle of engineering coheres with that of social ethics.

工程伦理学作为一门新兴学科，其大多数研究都着眼于从伦理学的角度看待工程学，而从工程学的职业规则和特点出发，介绍并阐发它对伦理学的意义及影响，这是工程伦理学研究的一个全新视角。

Groups the population according to the search width and integrated partition region principle, and determines task allocation on the basis of balanced task. Further regarding the center of the square grid as the point of the graph, transforms the original problem to be an approximate Hamilton question, then obtain one path like "one stroke" starting from the jumping-off point and rendezvousing for the midpoint of left side.

根据搜索宽度和整分搜索区域原则进行人数分组，再根据区域分配的均衡原则确定任务分配，最后把每个方格中心看作图中的点，将搜索问题转化为一个近似的哈密尔顿问题，设计出一条从起点处出发集结于一边中点的&一笔画&路径，而该路径的搜索效率达到95%，即得到的是误差很小的近似最优解。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！