数
- 与 数 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Furthermore, the non-linear global stiffness matrix is updated in the time domain as the riser deforms.7, Potential relationship between the freely vibration and the forced oscillation has been investigated and a theory model is successfully constructed.
该理论模型可同时考虑到雷诺数和质量阻尼比对横向振幅幅值的影响,同时也再次证明雷诺数是影响涡激振动横向振幅的一个重要参数。
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Considering the problems of spurgear precise plastic forming, such as high deformation resistance, poor flowability and especial hardness to fill cant of gear, technological plan was developed based on precise plastic forming technique, successive control principle and consecutive local deformation theory. Moreover, structures of the rolling preform die and the die with up and down wellrounded forcer for stamping-extrusion and bulge-extrusion combining forming were designed too.
因此本文的主要研究内容和结果如下:本文以某种直齿轮:模数m=2,齿数z=20,压力角α=200,变位系数x=0为对象,针对直齿轮精密塑性成形变形抗力大,流动性差,特别是成形中齿轮角隅部分更加难以充满问题,基于精密塑性成形技术、逐次控制原理以及连续局部变形原理提出了"直齿轮滚轧制坯-镦挤、胀挤复合精成形"的工艺方案,设计了滚轧制坯的模具结构和上下冲头带圆角的镦挤、胀挤复合精成形的模具结构。
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Fractional derivative is the concept of extension of the integral order.And it has a wide range of real meaning,it can describe many phenomenon of the natural world.
分数阶导数是整数阶导数的概念的延伸,其具有广泛的实际意义,它能描述自然界的许多现象。
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In TFDE, the first-order timederivative is replaced by a fractional derivative, making the problem global in time.
对于前者,时间上的一阶导数被分数阶导数所代替,使得问题在时间上是全局的。
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In this paper,a space fractional differential equation is considered.The equation is obtained from the advection-diffusion equation by replacing the second order derivative in space by a fractional derivative in space of order.
考虑空间分数阶微分方程(即在一个标准的扩散-对流方程中,用分数阶导数代替空间二阶导数),给出了该分数阶微分方程的显式和隐式有限差分格式。
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We give some equivalent characterizations of Bloch type functions in term of fractional derivative, via studying the relative of growth of the different order fractional derivatives of holomorphic function, including the form of supremum and limit, the form of integral and Carleson measure, which are the generalizations of some known results in the unit disc and in the unit ball.
我们从研究全纯函数分数次导数的增长性入手,利用分数次导数给出了它的一类刻画,包括上确界和极限形式的特征,积分形式的特征以及Carleson测度形式的特征,推广了单位圆盘和单位球上一些已有的结论。
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Fractional integral is an essential branch of fractal theory. In this paper, the authors adopted fractional integral in the evaluation of time series dimension, which has a higher accuracy than other methods such as box dimension, gauge method and so on.
分数阶积分是分形理论的一个重要分支,应用分数阶积分进行时间序列维数估计,其精度比box维数、量规法等方法高。
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In section four, by researching the properties of Kneser graphs, we construct the homomorphism φ between the Kneser graph and the outerplane graph. So the fractional chromatic number and chromatic number are obtained.
在第四部分中通过对Kneser图的一些性质的考察,在Kneser图与外平面图之间建立同态关系,从而得到了外平面图的分数色数与顶点色数。
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In a representation of a number expressed in a radix numeration system, the location of the separation of the characters associated with the integral part from those associated with the fractional part.
在按基数记数制所表示的数码中指定的位置,它把数的整数部分和小数部分的有关字符分开。
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How To Deal With Debt Collectors by Jeff Austin Debt collectors ringing your phone off the hook and sending intimidating letters can frazzle anyone's nerves.
如何处理与收数由Jeff柯士甸收数响您的手机摆脱困境和发送恐吓信,可以frazzle任何人的神经。
- 推荐网络例句
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The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.
此刻阴唇已经几乎完全的缝在一起了,排除多余淤血体液的管子和Foley导管从顶端冒出来。
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To get the business done, I suggest we split the difference in price.
为了做成这笔生意,我建议我们在价格上大家各让一半。
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After an hour and no pup, look for continued contractions and arching of the back with no pup as a sign of trouble.
一个小时后,并没有任何的PUP ,寻找继续收缩和拱的背面没有任何的PUP作为一个注册的麻烦。