位置函数

In order to avoid the inaccurate measure of the positions of the CTF zero blurred by attenuation at high frequency, we used a Gaussian curve to compensate the attenuation of Fourier transform of image at high frequency in such way that the amplitudes of two CTF zeros at the curve were compensated to the same value.

由于冷冻电子显微图像通常信噪比很低，衬度函数曲线的零点的位置不容易分辨。

When the vehicle vibrates, the ratio coefficients of the characteristics of components in fixed position and the corresponding characteristics of suspension are a function of generalized coordinates.

车辆振动过程中，实际安装位置的元件特性与悬挂特性的比例系数是广义坐标的函数。为了使数学模型尽量接近实际情况，本文导出了此比例系数与广义坐标的关系。

A mathematical formula, called a hashing function, is used to produce a unique number that will identify the record's physical location on the disk.

所谓的杂凑函数，是用来制造了一个独特的识别号码，将记录的物理位置在磁盘上。

Elements are always inserted in front of the position denoted by the iterator argument to inserter.

inserter 函数总是在它的迭代器实参所标明的位置前面插入新元素。

Key words: analytical mechanics; event space; variable mass; nonholonomic constraint; principle of Jourdain; Noether′s theorem

考虑N个质点组成的系统，其中每个质点的质量mi(i=1，…，N)是时间、位置、速度的函数， i为第i个质点mi的位矢。

With the return address (to which the function must jump once it completes), andfunction stores on the stack.

返回地址的存放位置，并作为函数的内部存储空间使用。

Leastsquare method and Lagrange's interpolation formula see their applicationsfor fitting fore-and-aft lines-whose aim is to calculate the intersection point ofequivalent inclined waterline-and differences. In order to replace theinconvenient alternate conduct of drawing and calculating, improvement hasbeen introduced into the paper which means all work can be done bycomputer. Capacity calculation cannot be done without boundary layer build-up. Fit every area curve and area moment curve is necessary because ofinterpolation.

在第二章中，给出了B样条函数的数学表达形式，推导了B样条曲线下所围面积、面积矩公式；讨论了最小二乘法和拉格朗日插值法的数学形式，并在拟合船体型线上给出首、尾轮廓线的具体实例，对比不同方法进行拟合的差异，其目的是为了求得与等体积倾斜水线的交点；而水线的确定改变了以往人工作图与计算交替进行的不足，尝试用计算机完全代替人工作图，以求有所改进；在舱容计算中，在至少包括舱室前、后壁的范围内拟合横剖面积、面积矩曲线，插值求得任一纵向位置处的剖面，以解决舱室边界条件。

It computes wind factors for flight data file, uses differential equations to solve for position and tension vectors as a function of arc length, and uses Runge-Kutta method for integration of ordinary differential equations.

该软件计算用于飞行数据文件的风向因素，使用不同的方程式，比如一个弧线长度函数来解决位置和牵引方向问题，使用 Runge-Kutta 方法解决综合推理差异方程式。

The Moon's actual radius varies as a function of position angle and libration because of the irregularity in the limb profile.

月球实际半径根据其位置角度函数和缓慢摆动而变化，由于其边缘轮廓的不确定性。

The mentioned control scheme can effectively control two joint of space manipulator to stably track the desired trajectory in joint space. It has obvious advantages that with needless feedback and measured the position, velocity, acceleration, attitude angle velocity and attitude angle acceleration of the floating base. At the same time, no requirements for the dynamic equations of the system are linearly dependent on inertial parameters.

文中提到的控制方案能够有效地控制漂浮基空间机械臂的载体姿态及机械臂关节，可以协调地完成期望的轨迹运动，并具有不需要反馈和测量空间机械臂载体的位置、移动速度、移动加速度，同时也不要求系统动力学方程关于系统惯性参数呈线性函数关系的显著优点。

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。