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The validities of amplitude features and their extraction method suitable in high-frequency SAR image are analyzed when they are used in UWB SAR image. An extraction approach of amplitude feature based on target contour is presented, and the corresponding effective amplitude features are proposed. The old dihedral angle model is analyzed and improved. The approach of azimuthal feature extraction is proposed based on the conclusion of the improved dihedral angle model. The problems, which appear when the common change detection methods are used to extract the change feature based on ROI, are analyzed. And a robust and feasible extraction approach is presented.

分析了适于高频SAR图像的幅度特征及其提取方法用于UWB SAR图像时的有效性，提出了基于目标轮廓的幅度特征提取方法及相应的适用幅度特征；分析了已有二面角模型在建模过程中存在的问题并进行了改进建模，基于改进二面角模型结论提出了方位向特征提取方法；分析了常用变化检测方法用于提取ROI变化特征时存在的问题，提出了一种稳健可行的变化特征提取方法。

I began to wonder if it would actually be feasible to free climb up this dihedral above Camp Six.

无疑地，我们已经将最好的技术用在自由攀登这条路线。

F〓 of transgenic allotetraploid fish containing"all-fish"transgene——pCAgcGHc was obtained respectively by inbreeding and gynogenesis. Positive rate of pCAgcGHc detected by PCR was 90％ in F〓 of transgenic allotetraploid fish produced by inbreeding, while most F〓 of transgenic allotetraploid fish produced by gynogenesis showed diploidy measured by flow cytometer. The results above imply that developing the pure line of transgenic allotetraploid fish through inbreeding is feasible, but the operation should be modified if gynogenesis is introduced.

采用近交和雌核发育方法培育出转pCAgcGHc基因异源四倍体鲫鲤F〓代，通过PCR检测，外源基因pCAgcGHc在近交转pCAgcGHc基因异源四倍体鲫鲤F〓中的整合率为90％，而流式细胞技术检测雌核发育转pCAgcGHc基因异源四倍体鲫鲤F〓的倍性多为二倍体，说明通过近交筛选转基因异源四倍体鲫鲤纯系的方法是可行的，但是通过雌核发育来筛选转基因异源四倍体鲫鲤纯系还要就方法上进一步的改进。

Concept of the feasible process graph for a part was defined and the mathematic model of multi-process routes decision-making problem was set up. Thus, the problem of multi-process routes decision-making was transformed into the problem of searching optimum path in this directed graph.

给出了零件可行性工艺路线图的概念，建立了多工艺路线决策问题的数学模型，从而将零件的工艺路线规划问题转化为对零件可行性工艺路线图中具备最优值的路径搜索和寻优问题。

And then all directed cutsets from the set of those directed segs were selected by analyzing connectivity of another subgraph. Theoretical analysis and experimental analysis of the algorithm showed that the improved algorithm was feasible and efficient.

算法首先利用边收缩图的概念，递归生成有向装配连接图的具有一个连通子图的一部分有向断集，接着通过判断另一个子图是否连通，从这些有向断集的集合中筛选出全部的有向割集。

We make a study on whether it is feasible and potential for us to extend Dirichlet energy function method into the field of rational Bézier surface.

探索了将 Dirichlet能量函数方法推广到有理极小曲面研究领域的可行性与潜在途径。

Open MR scanner with an optical tracking system guidance and monitoring lumbar disc discography is feasible and safety.

开放式MR结合光学导引系统用于引导椎间盘造影术是可行的、安全的。

The kernel is adding a discontinuous function for the standard approximation to account for the crack. A feasible technique is adopted for dealing with multiple cracks and intersecting cracks.

本文研究扩展有限元方法，通过改进标准有限元的单元逼近函数，使之能够表达单元内的几何不连续，从而实现切割和断裂的模拟。

Optimal control theory in discrete time system is applied for an example of stock management,a feasible scheme is given.

应用离散系统的最优控制理论。针对一库存管理实例。提出一个可行的管理方案。

Earlier Almond had asked Smith if he thought it feasible to disinter the dead buried at Hungnam.

早些时候阿蒙德曾问过史密斯如果他认为可以的话可以把埋葬在兴南的阵亡者遗体挖出来带走。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。