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Based on Crank-Nicoson's technique, and a new approach for the numerical simulation of the model is raised. The truncation error of the one step difference method reaches O (△t^2+△x^2) and of quite good stability condition.

基于Coriolis加速度和Lagrangian应力公式，利用Newton第二定律导出轴向加速度运动弦线横向振动的动力学模型；通过线性变换将方程化为一阶无量纲的非线性微分方程组；并利用Crank-Nicoson的中点离散技巧，给出运动方程的单步二阶差分方法；算法把对运动方程和本构方程分别离散，使之可以用于不同本构的运动弦线的数值仿真。

The expm1 function returns the value of Ex-1, where E is Euler's constant (approximately 2.7183) and x is the number passed to it.

expm1函数的作用是：计算 e（自然对数的底，其数值大约等于2.7183）的指数；它返回了exp 1的值，甚至当number的值接近零也能计算出准确结果。

That thou shalt set apart unto the LORD all that openeth the mat***x, and every firstling that cometh of a beast which thou hast; the males shall be the LORD#s.

13：12 那时你要将一切头生的，并牲畜中头生的，归给***，公的都要属***。

At length, receiving his quarterly allowance of fifteen guineas, instead of discharging his debts he went out of town, hid his gown in a furze bush, and walked to London, where, having no friend to advise him, he fell into bad company, soon spent his guineas, found no means of being introduced among the players, grew necessitous, pawned his clothes, and wanted bread.8 E$ v: x, l5 S f$ C2 z# Z

后来他收到每季的补助费十五几尼，没有去还债，却离开了市镇，把他的长袍藏在金雀花丛中，跑到伦敦去。在那里，没有朋友规劝，使他交到了坏朋友，立即花掉了他的几尼，才知道没有法子请人介绍当演员，渐渐地穷困起来，当掉了他的衣服，又没有面包可吃。

T# X* Y!}0 r Gottlieb's book is based on an article she wrote in 2008 for the Atlantic magazine.

y Gottlieb的书是在她2008年写给《亚特兰大》杂志的一篇文章的基础上写成的。

It is not known whether he painted the Two PORTRAITS which we set before the reader's notice, during his first absence from Spain, or during an embassy with which Philip afterward entrusted him,(in 1648) to Pope Innocent X. And a similar uncertainty attends on the supposition that they represent Ferdinand de Medicis and his consort, the grand Duke and Duchess of Tuscany, as is, however, generally supposed.

目前还不知道他是否在他的画来自西班牙，或在与后来的菲利普使馆首次委托他缺席的情况下，我们两个的肖像前，读者的通知规定，（1648年），以诺森十一个类似的不确定性出席假设上的，他们代表费迪南德迪西斯和他的妃子，大公爵和公爵夫人的托斯卡纳，作为然而，一般所设想的。

Additionally, spammers have learned to obfuscate suspect words by using spellings such as "S*E*X", or "VI a a GRR A".

另外，滥发电邮，学会用模糊字眼嫌犯拼法，如"五收盘**×"，或"六有一grr"。

A thermometer thrust into the middle of Walden on the 6th of March, 1847, stood at 32x,or freezing point; near the shore at 33x; in the middle of Flint's Pond, the same day, at 32+x; at a dozen rods from the shore, in shallow water, under ice a foot thick, at 36x.

一八四七年三月六日，一只温度表插入瓦尔登湖心，得三十二度，或冰点，湖岸附近，得三十三度；同日，在弗灵特湖心，得三十二度半；离岸十二杆的浅水处，在一英尺厚的冰下面，得三十六度。

B X }! K$ \6 i6 Q+ B But let's for a moment abandon our Harvard savoir faire, our imperturbability, our pretense of invulnerability, and try to find the beginnings of some answers to your question.

那让我们还是暂时摘下那戴着的哈佛面具，收起那缺乏热情的冷漠，卸下我们看似刀枪不入的伪装，让我们尝试去探寻你们问的一些问题的答案。

Numerical Integration Single variable f - Calculates the definite integral of a single variable function f(x using numerical methods: The Trapezoidal, the Midpoint and the Simpson's method.

计算一个单精度变量的整数部分的函数f 使用的数学方法：梯形法、中间点中和辛普森方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。