查询词典 estimation

The estimation of forming part"s sideline The estimation of forming part"s sideline is significant in weld and assembly process, the paper puts forth two kinds of method to realize quantitative analysis for the deformed sideline, one is using line contour error to estimate deformed sideline combined with GA and taking the value of line contour error as target to check whether it is in the range of precision; The other is comparing curvature and torsion of design model with curvature and torsion of deformed model to check the sidelines precision.

冲压件边线变形的评价。冲压件的边线变形的评价在焊装工艺中有着重要意义，本文提出两种方法来实现冲压件边线的变形评价：一是借鉴线轮廓度评定的方法，结合遗传算法计算出边线的线轮廓度，并以线轮廓度值作为边线是否满足要求的评价指标：二是通过比较变形前后曲线的曲率和挠率来评价边线的变形情况。

Based on the estimation of the directions of arrival and the Doppler frequencies of the sources, a quaternion model was proposed, which made the estimation of the DOA and the Doppler frequencies similar to that of one-dimensional azimuths so as to avoid direct and indirect pairing with the complex model.

针对阵列信号处理中方向角、多普勒频率的同时估计问题，提出了方向角、多普勒频率的四元数模型，使估计方向角、多普勒频率二维问题与估计一维问题相类似，从而避免了在经典的二维复数模型估计中直接或间接的配对。

On the other hand, a square root non-optimal set membership state estimation algorithm by ellipsoids is given, and the parallel computation of state estimation using systolic arrays is schemed.

另一方面，提出了一种平方根非最优椭球集员滤波算法，并给出了实现滤波计算的心动阵列结构。

For the purpose of understanding the vulnerability analysis role, importance and relationship with seismic hazard analysis and exposure assessment in earthquake loss estimation in global view, the general procedure of earthquake loss estimation is summarized first.

为了能深入理解结构地震易损性分析的地位和作用，(1)概述了地震损失估计的一般步骤；(2)研究了地震危险性分析、风险区内社会财富估计及这些社会财富地震易损性分析在震害预测中的地位、作用以及三者之间的相互关系；(3)总结了设定地震的可能途径和可能方式，提出了兼顾地震发生的可能性和地震潜在破坏的严重性的设定地震选择原则；(4)比较了目前表示地震动-破坏关系的三种主要方法；综述了国内外地震损失估计的现状，指出目前亟待解决的一些重要问题。

Secondly the estimation of power spectrum of flame signal was made, and it was found to be able to reflect the stability of combustion state, which meaned that when the results of estimation of power spectrum showed that the frequency range in which the signal had certain value of energy became wider, and the peak value became larger, the extent of combustion stability became worse.

本文首次将色度学的原理引入到煤粉火焰颜色定量研究中来，试验研究发现，火焰的色度坐标可以反映火焰中风煤配比的变化：当色度坐标变小时，对应于风煤比变大，并且色度坐标对贫燃火焰反应敏感。据此可用来监视燃烧火焰中风煤配比是否失调。

For beams under positive bending, LRFD approach may be appropriate in the estimation of composite beam strength with floor slab, but tends to be stiffer in stiffness estimation.

在梁的部分采用LRFD 所建议之部分复合断面分析，经与实验结果比较在正弯矩时断面强度可准确评估但劲度的评估则稍差。

In view of that the traditional estimation strategy of SOC is not suitable for the conditions of variable current discharge of battery, which is particularly complex in hybrid excavator, a new estimation strategy of SOC is presented based on the law of conservation of energy and four-line's measurement technique.

传统的电池荷电状态估算方法己经不能满足蓄电池变电流放电工况的需要，而混合动力液压挖掘机中蓄电池变电流放电工况异常复杂，因此变电流工况下SOC的准确估算具有重要意义。

Finally, the availability of the parameter estimation method in the parameter estimation of continuous rigid frame bridge was justified.

得出这种参数估计方法在连续刚构桥的参数估计中是可行的。最后，提出了进一步研究的方向。

By continuous working for 60 years, the Chinese geodesists have developed the quasi-stable adjustment principle, robust estimation based on equivalent weight principle, robust estimation for correlated observations, adaptively robust filters etc.

中国学者经过60年不懈努力，在自由网平差、拟稳平差、半参数估计、不适定问题解算方法、抗差估计、自适应滤波等领域做出了重要贡献，建立了许多新的理论、模型和方法，推进了大地测量数据处理理论的进展。

In order to overcome the limitations of kernel estimation and shortcomings of the method for determining inliers/outliers threshold in ErrorInVariables model, the projection based Mestimators was improved. First, a new mode search method named adaptive kernel density estimation was proposed. Then, a different strategy was given to determine the inliers.

针对EIV模型中基于投影的M估计方法存在的核密度估计和正常点与异常点阈值确定的局限性，提出一种改进的投影M估计算法：首先给出新的用于搜索极值点的自适应核密度估计函数，然后改进了正常点的确定方法。

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