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It is often seen that only lower order modes of the beam without large overallmotions are chosen to reduce the number of the generalized coordinates,the simulation,however,is able to reach certain accuracy.

本章对不同转速和中心刚体半径下模态截断法和有限元法的仿真结果进行比较，根据两种方法的振动基频的相对误差确定了模态截断的阶数与转速、中心刚体半径的关系，提出了模态截断的准则，解决了模态截断法的精度问题。

Since the number of generalized coordinates is large when using the finite element method, MTA is usually used for improving computational efficiency and only lower-order modes are chosen.

因为用有限元离散时，柔性薄板的广义坐标规模较大，故仿真计算需要时间较长，所以模态截断法被用来缩减广义坐标数量，提高计算效率。

Finally, the calculation process of CGR graphic's multi-fractal analysis was studied. the scope of choice of the weight factor and the scale invariance range were discussed, the weight factor can be chosen as ? 15≤q≤50; multi-fractal spectrum and generalized dimension of different sequence were calculated, multi-fractal spectrum and generalized dimension in different scales of different sequences were compared, it was found that multi-fractal spectrum and generalized dimension can show different levels of fractal characteristics of CGR graphics of DNA sequence, which can distinguish more complex structure of sequences.

最后，研究了DNA序列CGR图形的多重分形的计算过程，讨论了权重因子及满足标度不变性的范围选择等问题，得到结论：对CGR图形进行多重分形时权重因子可以选择为-15≤q≤50；计算了不同序列的多重分形谱和广义维数，比较了不同序列不同尺度的多重分形谱和广义维数，发现多重分形谱和广义维数能够表现DNA序列CGR图形的不同层次的分形特征，能够区分更复杂的序列结构。

Finally, according to the specific situation of 2# hydroelectric generating set at Daxia hydropower station, the test spots are arranged suitably, and sensors are chosen accordingly.

再次，根据水电站具体情况，研究了水轮发电机组状态监测与故障诊断系统的设计原则，并在此基础上构建了大峡水电站状态监测故障诊断系统的整体结构。

You have chosen Graphic Expression, geodesic dome .

你选择了工程图形表达，测地线拱顶。

The reference height we have chosen is the one closest to the average height of the worlds oceans. This is called the Geoid.

我们一般选择的参考高度是最接近全球平均海平面的那个层，也就是所谓的大地水准面。

Second, an analysis and contrast is made among several structures appearing in the market, one of which is chosen to be the initial model of the system and the need of initial parameters is calculated based on relevant geometrical optics.

然后对市场上现有的几种结构进行分析对比，选取其中一种作为设计的初始模型，利用相关光学知识计算初始设计参数。

It is concluded that digital geophone should be chosen for high resolution seismic survey if possible.

通过研究认为，数字检波器是高分辨率地震勘探的首选检波器。

The New York Post even reported that Gephardt had been chosen and "Kerry-Gephardt" stickers were being placed on campaign vehicles before being removed when Edwards was announced as Kerry's number two.

纽约邮报报道，甚至被选为格普哈特和"克里-格普哈特"标签被放置在车辆运动时被删除之前，爱德华兹作为克里宣布的第二位。

Via estimating and choosing the offspring of Gerbera jamesonii ,six relatively good individuals had been chosen out .

另外通过对杂交后代的评比和选择，选育了6个综合性状较好的优良新品系。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。