查询词典 rectangular parallelepiped

Second order incident boundary condition on fixed incident boundary is derived for numerical simulations, based on the cnoidal or sinusoidal motions of wave maker paddle, which shows that the prediction with second order incident boundary condition is more accurate than the prediction with first order incident boundary condition. 2 The analytical solution for higher-order Boussinesq equations is derived and its applicable range is discussed. 3 A 2-D fully non-linear numerical model using boundary element method is developed to obtain wave forces acting on rectangular obstacle. 4 The three-dimensional fully non-linear waves are studied in a numerical wave tank using finite element method.The studies on the coupled numerical model combined Boussinesq equations with Laplace equation are following.

非耦合非线性波浪计算模型：1 根据造波板做椭圆余弦运动或正弦运动速度，推导出数值模拟波浪水槽时固定入射边界上的二阶波浪入射边界条件，数值计算结果和实验结果的对比表明采用二阶入射边界条件对波面升高的预报比采用一阶入射边界条件对波面升高的预报更为精确；2 推导了波浪水槽造波板做正弦运动所产生波浪的高阶Boussinesq方程摄动展开解析解，讨论了该解析解的适用范围；3 对整个波浪水槽应用边界元方法数值模拟了波浪对物体的非线性作用；4 用有限元法求解三维Laplace方程模拟了三维完全非线性波浪水槽。

A rectangular finite element for laminated plate with bonded and/or embedded piezoelectric sensors and actuators is developed based on the variational principle and the first order shear deformation theory.

基于变分原理和一阶剪切理论，本文建立了一种新的机电耦合矩形有限单元，该单元具有四个节点20个位移自由度，电自由度为单元中的压电铺层层数。

Give the coordinate equation of rotor linear .on the 3-section curve within the first quadrant of the rectangular coordinate, show the program block diagram of computer, and give the results of the sample.

给出了转子型线在直角坐标系第一象限内三段曲线的坐标方程式，列出了计算机程序框图，给出了实例结果。

By using the method for positive term resolution of equations of higher degree, all non-zero real roots of a real coefficient equation of higher degreewere obtained by determiningthe abscissas of intersection points of two monotonically increasing concave functions in the first quadrant of a planar rectangular coordinate system.

用高次方程正项分解方法，将求解实系数高次方程非零实数根的问题，转化成求解两单调上升凹函数在平面直角系第一象限内交点横坐标的等价问题；给出了基于共享存储多指令流多数据流并行计算模型求解任意实系数高次方程全部实数根的大范围收敛性异步并行迭代算法，并分析了算法计算的复杂程度。

The rotor ina certain electric motor is a flat, rectangular coil with 80 turns of wire and dimensions 2.50 cm by 4.00 cm.

伊纳某些转子电机是一个平面，矩形线圈80圈钢丝和层面二点五○厘米的四点○○厘米。

The rotor in a certain electric motor is a flat, rectangular coil with 80 turns of wire and dimensions 2.50 cm by 4.00 cm.

一个2.5cm*4.0cm平面的矩形转子在电动马达里。

Fruit a berrylike indehiscent drupe with pyrenes 2 × as many as styles, globose, in dried material characteristically longitudinally angled, squarish or rectangular in longitudinal cross-section, with flattish apex and base, contracted or not at equator, disk persistent at base, style or stigma remnants persistent at apex.

果浆果状的不裂的核果的，具果核数为花柱的2倍，球状，在干标本上明显具纵向的角，纵向截面近似方形的或长方形的，具平的先端和基部，收缩或在赤道轴上不收缩，花盘宿存在基部，花柱或柱头残余在先端宿存。

In order to accurately analyze the differences on load carrying ability among laminated beam , laminated beam with wedges and beam as a whole of the same dimension,this paper sets up a model of flection of laminated beam s with rectangular cross section by taking advantage of Winkle s foundation assumption method and electric testing technique.

为了精确分析叠梁、加楔块叠梁和整梁的承载能力，采用温克尔假设法和电测实验技术，完成了矩形截面叠梁受力弯曲时的模型简化理论计算与实测分析。

In this paper, the numerical method for the problem of flow and heat transfer in rectangular narrow channel is researched.

本文对矩形窄缝内流动与换热的数值计算方法进行了研究。

The small rectangular box on right hand footplate is battery box for headlamp, steam turbo generator a job for this winter!

小右手踏板上矩形框是电池盒的大灯，蒸汽涡轮发电机是今年冬天的工作！

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样