梯形的

Planaria is the most simple in three blastoderm animal, its nerve system is ladder-like.This is the bio- evolution of the nerve system.

三胚层动物扁形动物涡虫的神经元连接成梯形神经系，有原始的脑和两条神经索，反映了原始生命反射功能的进化和演变。

John Bunsby, master, at length gave the order to start, and the 'Tankadere', taking the wind under her brigantine, foresail and standing-jib, bounded briskly forward over the waves.

约翰·班斯比船主终于驾船出海了。唐卡德尔号上的后樯梯形帆、前中帆和外前帆兜着饱满的海风，在一望无际的大海上奔驰前进。

A new polygon filling method——polygon trapezoidal decomposition filling method——is put forward and realized. An analytical comparing between its time complexity and that of the classical methods shows that it is faster than scan-line algorithm in the case of complex concave polygon.

提出了一条新的多边形填充思路——多边形梯形网格剖分填充法，实现了该算法并将其时间复杂度与经典的有序边表算法进行了比较，说明该方法在复杂的凹多边形情况下处理速度较有序边表快。

The effect of each parameter on distribution of static pressure and pressure loss coefficient are found out.

为了解不同的雷诺数和出流比情况下各种因素对压力损失系数的影响，对有侧流梯形扰流柱通道端壁的静压和压力损失系数进行了实验测量。

The results showed: there were some apoptosis cells found by microscope, electron lens and flow cell counter; there were model gradient streak in DNA electrophoresis of the GCT cells effected by high dense ADM over 0.4

结果表明，光镜、电镜及流式细胞分析均可获取一定数量的凋亡细胞，且较高浓度（0.4μg/ml以上）阿霉素处理的细胞DNA电泳可见典型的梯形条带。

At last, the generated numbers was tested according to the standard of FIPS 140-2 statistical tests for randomness. And the results indicated that the generator can generate the high-quality pseudo-random numbers, which have good statistical properties and can be applied in cryptography.

计算机模拟表明，提出的二维梯形伪随机序列发生器产生的伪随机序列完全可以通过FIPS 140-2测试标准，证明该发生器具有良好的统计特性，完全可以应用于密码学领域。

Hardware wiring diagram and ladder diagram for the groover control with PLC are established. And the control software is comprehensively and thoroughly analyzed.

进一步确定了PLC的输入量和输出量，由此建立了其PLC控制的硬件接线图及梯形图控制软件，并对该控制软件进行了全面深入的分析。

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 a given function, namely, composite trapezoidal formula using composite Simpson formula Romberg quadrature formula and the variable step-size integration quadrature formula results, and compare the accuracy of points.

详细说明：根据给定的函数，分别用复合梯形公式、复合辛普森公式、龙贝格求积公式和变步长的求积公式计算积分结果，并且比较积分的精确度。

Function graphing and analyzing: 2D, 2.5D functiongraphs and animations, extrema, root, tangent, limit,derivative, integral, inverse; sequence of number: arithmetic progression, geometric progression; analytic geometry: vector, line, circle, ellipse,hyperbola and parabola; solid geometry: spatial line, prism, pyramid, cylinder, cone, dado and sphere; Ability to save graph as data file or bmp file; Ability to save animation as AVI file; Ability to move, zoom in, zoom out and rotate the scene.

函数图表和分析：2D， 2.5D 函数图表和动画，极值，根，正切，极限，导数；序列号：等差数列，等比级数；解析几何：向量，矢量，直线，圆，椭圆，双曲线和抛物线；立体几何：空间线，棱柱，三角锥，圆柱，圆锥体，梯形台和球体；保存图形为数据文件或者图像文件的功能；保存动画为 AVI 文件的功能；移动，缩小，放大和旋转场景的功能。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。