查询词典 halving method

Based on theory and practice, the advantages and disadvantages, the applicable range andobtainable accuracy of six methods on homogeneity measurement of optical materials——holographical interferometry, Mach-Zender interferometry, Twyman - Green interferometry,star-point method, Foucault shadow method and resolving method——are analysed.

本文从理论和实践相结合的角度，分析了测量光学材料均匀性的全息干涉法、马赫陈德尔干涉法、台曼-格林干涉法、星点法、刀口阴影法、鉴别率法等六种方法的优缺点、适用范围及所能达到的测量精度。

Based on the modem FEM with the dynamic substructure method, itd dynamic equation is established with almost no limits to DOFs of the system, in which the left side is the first approach of the nonlinear system and the right side is the excitation and coupling nonlinear pseudo forces. The modal analysis method is used to get the eigen solution to the reduced linear homogeneous dynamic differential equation. When the system is excited by the harmonic excitation at the right side of the equation, the nonlinear dynamic response can be calculated by the numerical method to give quantitative analysis.

基于近代有限元和子结构模态综合法的动力学建模方法，获得非线性系统动力学微分方程，其自由度几乎没有限制，对左端首次近似齐次方程进行模态分析，选取对响应有贡献的部分本征对，同样对右端激励和非线性伪力作模态变换，得到减缩后非线性系统耦合动力学微分方程。

Because the characteristic is combining explosive, it is advised that using Binary SLNN to solve the problem. In order to test the liability of the results, this study will use random researching method in comparison with Weighted Hungarian Method. It is found that the testing result of SLNN is superior to Weighted Hungarian Method in solution-effect and random searching is the worst one.

由於问题具组合爆炸的特性，故本文拟以自我学习神经网路解多目标指派问题，另为使解答有比较之依据，在此与随机合法解及加权匈牙利法的解答作比较；经测试，在解答品质及稳定性方面，以自我学习神经网路表现最佳，加权匈牙利法次之，随机合法解效果最差。

But the one step method that taking propene and hydrogen bromide as material synthesized 1-bromopropane was low cost, obtaining high-purity product ,and it's production process has no pollution to environment. One step method be deemed to the optimum method.

而以丙烯和HBr气体一步直接合成1-溴丙烷的方法成本较低，所得产物纯度较高，且其生产过程对环境是绿色的，可以说是生产1-溴丙烷的最佳方法。

Magnetic Resonance Sounding is the only geophysical new method of directly detecting underground water at present. In this paper the main gains of taking part in the 2nd MRS international workshop are introduced, development and progress of hydroscope and applications of MRS method are considered. On the basis of the MRS successful application in the detection of underground water, using MRS method new progress has been made in slide monitoring of Three Gorges and archeology of the first Qin dynasty imperator mausoleum for the first time.

第二届核磁共振测深国际学术研讨会概况《第二届MRS在地下水勘查中的应用》国际学术研讨会2003年11月19日~21日在法国奥尔良召开。1.1 第二届MRS 研讨会的主题研讨会的主题是：对地表下含水层MRS响应模拟；数据处理和反演；野外工作对策；数据采集和质量控制方面的经验；MRS和其它地球物理资料的综合应用和解释；MRS资料的校正和确认问题；含水层几何形状和水动力学性质特征；开发MRS 方法的前景。

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 method uses an implicit iterative scheme with a hyperbolic sine transformation for the matrix potential, takes the advancing front self-adaptive grid, and resolves problem of too much account in calculation to dry earth's surface by fixed grid method. Results indicate that calculation speed is increased greatly and errors are less than by fixed grid method.

该方法使用了水土势双曲正弦变换的隐式差分格式，并采取了自动向下搜索的空间网格形式，解决了干燥地表固定网格计算量过大的问题，同时计算速度大大提高，计算误差小于固定网格法的误差值。

These strategies include: an improved adaptive movement penalty method which prevent ill condition matrix based numerical instability, a network topology based identification method which prevent too much tuning and a limited times skipping method of trial iteration.

在上篇中，本文给出了以下内容：第二章详细描述了最优潮流牛顿算法的实现，着重分析了牛顿法实际应用中存在着的两个主要问题：数值不稳定性和如何快速正确地识别起作用的不等式约束集，并提出了相应的处理对策。

It is not clear enough how purchase method and pooling method will influence the stock price and the effectiveness of resource allocation in business combination, though ill-use tends to appear when pooling method is applied.

尽管目前人们对权益集合法和购买法对公司股价的差异性影响及资源配置效率的影响尚缺乏充分的论证，但从实际来看，许多公司运用构造交易方式实施权益集合法，导致了权益集合法的滥用。

In the paper,a fast image retrieval method based on the DCT domain and correlative feedback is presented,which aims at JPEG images and uses color layout descriptors in the MPEG7 standard. As the method only needs entropy decoding,the speed of extracting image features is improved and storage space saved. The experiment result shows that the method has a high retrieval speed and a good effect.

文章针对JPEG压缩图像，结合MPEG 7中建议的颜色布局描述符，提出一种带相关反馈的基于DCT域的快速图像检索方法；该方法只需要熵解码，可提高图像特征提取的速度、节省存储空间；实验结果表明，此方法具有检索效率高、检索效果好的特点。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。