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Under the simple harmonic vibration, the stable forced vibration of multiple-degree-of-freedom system is analysed by using ANSYS software.

运用ANSYS软件分析多自由度系统在简谐激励作用下的稳态受迫振动。

The following results are obtained:(1)a derivative formal context of an information system can be induced by the notion of nominal scale and the technique of plain scaling in formal concept analysis;(2)some core notions in rough set theory such as partition,upper and lower approximations,independence,dependence and reduct can be reinterpreted in derivative formal contexts.

利用形式概念分析中名义梯级背景的概念，对信息系统进行平面梯级得到了衍生的形式背景。证明了粗糙集理论中的划分、上下近似、独立、依赖、约简等核心概念都可以在相应的衍生背景中进行表示。

In the integral formula of Fourier transforms of option pricing formula,by using residues theorem two integrations were simplified into a single numerical integration which has a faster rate of decay.

在期权定价公式的傅立叶变换积分公式中，运用留数定理将公式中的两个积分式子化简成一个被积函数衰减较快的积分函数式，从理论上提高了计算效率，缩短了计算时间，为投资者快速计算期权价值节约了时间。

Based on the Betti-Rayleigh dynamic reciprocal theorem, the reciprocal property of the Green function is demonstrated; and the analytical solution of soil vibration subjected to moving loads is deduced. By means of double Fourier integral transform, the problem is firstly transformed into wave number-frequency domain, which makes it very convenient to derive the solution and furthermore to analyze the frequency characteristics of soil vibration.

基于Betti-Rayleigh动力互易定理，论证了地基土Green函数的互易性，推导了移动荷载引起的地基土振动解析解，进而推证出移动常力荷载和移动简谐荷载作用下地基于表面振动在波数－频率域内和空间－时间域内的解析表达式，并采用Matlab对其进行数值计算。

The dynamic stability of simple supported viscoelastic column, subjected to a periodic axial force, is investigated. The viscoelastic material was assumed to obey the fractional derivative constitutive relation.

研究简支的受轴向周期激励的粘弹性柱动力稳定性，柱的材料满足分数导数型本构关系。

This model has been successfully applied to modeling jet fuel endpoint estimator for a fractionator of the hydrocracking unit in the oil refining industry.

在输入变量已经确定的情况下，寻求输入空间的最优模糊划分，使得模糊模型具有最简的规则库，这是"内部"精简法。

Jane: I like you, Francis.

简：我喜欢你，弗朗西斯。

Free oscillation of the earth: A simple change-of-shape oscillation of the whole earth.

地球自由震荡：地球整体形状变化的简谐震荡。

I was telling you of your grandmama, jane,- there was a little disappointment.- the baked apples and biscuits, excellent in their way, you know; but there was a delicate fricassee of sweetbread and some asparagus brought in at first, and good mr. woodhouse, not thinking the asparagus quite boiled enough, sent it all out again. now there is nothing grandmama loves better than sweetbread and asparagus - so she was rather disappointed, but we agreed we would not speak of it to any body, for fear of its getting round to dear miss woodhouse, who would be so very much concerned!

我认为是两级，可是只有一级，这是我见过的最舒服，最风光的--四处灯光辉煌，我刚刚同你说到你外婆，简--她多少有些不快，烤苹果和糕点都很诱人*但是开头还有一盘可口的烧膵脏芦笋，善良的伍德豪斯先生觉得芦笋没烧熟，差人全都拿下去了，外婆最喜欢吃烧膵脏芦笋--因此她有些不高兴*但是我们都讲好了，不对其他人讲这件事，担心会被伍德豪斯小姐听到，她会很难过的。

You mention Frisco and everyone thinks of a city by the bay .

旧金山又简称为"Frisco"，一提到"Frisco"，人们就会想到一个滨海的城市。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。