查询词典 method of undetermined coefficients

Organic solvent repetition crystallization method showed that 60% ethanol was the suitable solvent system. After 5 times repetition crystallization, the purity of product can be up to 98%, and the crystal state was yellow club-shaped, length of which is above 3mm. The productivity of this method is 30.01±1.26%, which is 2 times high than water repetition crystal method. So this method has good exploitation foreground.

有机溶剂重结晶法，选择60%浓度乙醇为适合的二氢杨梅素结晶体系，经过5 次重结晶后，产品的纯度可达98%，晶体为黄色、棒状，长度可达3mm，结晶产率为30.01±1.26%，较水重结晶法高2 倍左右。

Short horizontal brush method (also known as the level of vibration method): People used to cross-brush method is a long see-saw action, such cross-hair brush method, if coupled with a hard toothbrush would be damaging to the periodontal (gum brush the edge of injury , gingival recession, root neck, wedge-shaped defects, etc.).

短横刷法：用于交叉以人刷法是一项长期拉锯式的行动，例如跨毛刷方法，如果用硬牙刷加上将有损于牙周（牙龈刷受伤的边缘，牙龈退缩，根颈部楔状缺损等）。

Based on the previous results, the method to derive creep constructive model from the indoor experiment data is studied, and these study works are also finished: the reasonable method to determine instance elasto-plastic deformation according to experiment curve, the optimization method to perform curve fitting based on experiment data, the universal method to derive creep constructive model from experiment results.

4在已有研究成果的基础上，对从室内试验数据成果导出流变本构模型的方法进行探讨，研究从室内流变试验曲线上确定瞬时弹塑性变形的合理方法，以及对流变试验数据进行曲线拟合的最优化方法，探讨由室内试验数据成果导出流变本构模型的一般性方法。

In the traditional AdaBoost method,the weights are updated based on the weak classifier's overall error rate, this article proposes one kind of the method which unifies the level of difference between the threshold and the feature value of the weak classifier with the weak classifier's overall error rate. Compared to the method which only based on the overall classification error rate to update the weights,this method can achieve higher detection rate while reduces the mistaken-detection rate.

在传统AdaBoost方法中，权重是根据弱分类器的整体错误率来更新的，本文提出了一种将弱分类器的阈值与特征值相差程度和弱分类器的整体错误率相结合来更新样本权重的方法，相比较只根据整体分类错误率来进行权重更新的方法，这种方法可以在降低误检率的同时达到较高的检测率。

The proposed robust road main direction detection method consists of initial main direction extraction based on the direction histogram of structure tensor and precise direction detection on vectorized edge image. Experiment results demonstrate its robustness and precise. The proposed Gibbs-sampling-based method models road network with marked point process and can effectively extract road network with initial configuration. However it is slow and still can not deal with single and isolated road segment. These problems can be solved by the real-time method. And experiments verify that the real-time method is fast during extracting road segment.

提出的稳健道路局部主方向提取算法以结构张量为基础，通过方向直方图确定大致主方向，并通过矢量化边缘进一步计算准确的方向角，实验结果表明具有良好的稳健性和准确性；提出的基于Gibbs采样的交互式道路网提取方法采用标记点过程对道路网进行建模，在给出初始构造项的情况下，能有效的提取出指定道路网；提出的实时交互式道路段提取算法弥补了上一方法无法处理单一直线道路段和计算过程慢的不足，是上一方法的有益补充，实验结果表明算法能快速提取道路段。

A multi-objective property assessment of the effects of industrial waste-water management is discussed concerning economy, the environment and management capacily. Four assessment methods: the method of fuzzy elements approaching to an ideal solution, the Blin method, the oscillating value method, and the fuzzy optimization method, are also discussed.

论述了区域内工业废水治理效果评价的经济、环境和污水处理能力的多目标性，探讨了逼近于理想解的模糊物元法、Blin法、密切值法和模糊优选法等四种多目标优选评价方法。

Four assessment methods: the method of fuzzy elements approaching to an ideal solution, the Blin method, the oscillating value method, and the fuzzy optimization method, are also discussed.

并以此为基础，通过不同评价方法的集结建立了工业废水治理效果评价模型。

One is low valence vanadium oxide thin films were deposited by direct current facing target magnetron sputtering firstly, and then thermal oxidated; the other is high valence vanadium oxide thin films were deposited by ion beam sputtering, then thermal deoxidated. Vanadium oxide thin films with phase transition were obtained at the lower thermal process temperature 300℃, which is compatible with MEMS technologys. The composition of VO_x thin film fabricated by first method includes mainly VO_2, V2O3 and VO_, the TCR is -2.25%/K, the TCR gradually increases with phase transition temperature decreases. The composition of VO_x thin film fabricated by the second method includes mainly VO_2, V2O5 and V2O3 , and the resulting VO_x thin filmTCR is -3.0%/K. The TCR of phase transition vanadium oxide thin films made by second method is higher than that made by first method for the existance of V2O5 in thin films.

分别采用直流对靶磁控溅射制备低价态氧化钒薄膜再附加热氧化处理的方式，和射频离子束溅射制备高价氧化钒薄膜附加热还原处理的方式获得了具有相变特性的氧化钒薄膜，第一种方式获得相变特性氧化钒薄膜的热处理温度最低为300℃，克服了以往高温条件下热处理不能与MEMS工艺兼容的缺点；相变特性氧化钒薄膜的组分以VO_2为主，含有V2O3和VO_，室温TCR为-2.25%/K；室温电阻温度系数随相变温度的降低逐渐升高；采用第二种方式获得的相变氧化钒薄膜的组分以VO_2为主，含有V2O5和V2O3，室温TCR可达-3.0%/K；分析发现，具有相变特性的氧化钒薄膜中含有V2O5时，室温电阻温度系数明显增大。

Socratic method 苏格拉底方法 Perhaps his most important contribution to Western thought is his dialectic method of inquiry, known as the Socratic Method or method of "elenchus," which he largely applied to the examination of key moral concepts such as the Good and Justice.

也许苏格拉底对西方思想的最重要的贡献是他辩证的质疑方法，这种方法被称之为&苏格拉底方法&或&反驳方法&，他主要把这种方法应用于对关键的道德概念的考察。

A method to find the exact points of inlet and outlet of film-thickness of the EHL is introduced. A numerical solution of TEHL of the gear using Newton relaxation method and binary search method and the method to find the exact points of inlet and outlet is developed. By means of multiple regresion, a formula to calculate TEHL flash temprature of the gear is obtained.

推导给出了齿轮承载区内热弹流热流密度方程、无量纲参数团表示的热弹流方程和油膜入口点及出口点搜索确定方法，编制了由松弛因子牛顿法、对分法及油膜入口点和出口点搜索方法等组成的便于工程实际应用的齿轮承载区热弹流快速计算程序。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。