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A global gravity field recovery based on energy balance approach using CHAMP kinematic orbits is presented. A method combining the Newton's numerical differential formula and the remove_restore procedure for determining kinematic velocities is developed.

介绍了利用CHAMP几何法轨道恢复地球重力场模型的基本原理和算法，提出了基于牛顿数值微分公式并辅助移去-恢复方法计算卫星速度的算法。

Morse potential function was employed to describe interaction forces, and coupling followed Newton's second law of motion. A Gear's predictor-corrector algorithm was used to calculate molecular positions, velocities and accelerations at every time step.

奈米超微粒分子间采用 Morse 势能模型来计算铜原子间的作用力，依循牛顿第二运动定律，并使用 Gear 五阶预测修正法来分析每个步阶的分子位置，速度等物理量。

As long as it creates its own gravitational field, the starship could travel locally at very slow velocities, therefore avoiding the pitfalls of Newton's Third Law of Motion and keeping clocks in sync with its launch site and destination.

当企业号建立起自己的重力场，飞船的局部就能够以低速行驶，从而避免牛顿第三运动定理的缺陷，同时保证船上的时钟与出发地及目的地相同。

Using the changing rate of maximum feed-rate as a threshold,the surface of the part is divided into different areas according to the values of normal curvature radius.Then the feed-rate is adjusted by constant velocities of cutter contact,thus the adaptive variation of feed-rate can be reached.An example is given to prove the ra...

以最大工作进给速度的变化比率为阈值，把零件表面的法曲率半径划分为不同的区域；在不同的曲率区域内，分别以恒定的刀触点速度对进给速度进行修正，修正后的进给速度随着零件表面曲率的变化而自适应变化；实例表明该方法具有合理性和有效性。

In this system, the combined orientation model of DTWADGPS is established using the WADGPS, odograph, speedometer and roscope, etc. And the information of the multi-sensor is processed using the method of data fusion, which is used to resolve the accuracy and blind area problems of train position Combining the technology of GIS and GSM-R and the Expert System, the system of intellectualized train dispatch and management is established based on train positions and velocities acquired accurately.

系统采用WADGPS、里程表、车速仪、陀螺仪等构建分布式逆向WADGPS组合定位模型并对多传感器信息进行融合处理，解决列车定位的精度和盲区问题；在精确获取列车位置和速度的基础上，结合GIS和GSM-R技术和专家系统构建列车智能调度管理系统。

Based on the array signal processing and the eigenstructure decomposition method, the signal subspace and the noise subspace are achieved by reconstructing and decomposing the data matrix collected by the array sensors. By using the orthogonal properties of the two subspaces, the information about the velocities and bearings of spatial moving targets can be exactly obtained.

本文提出一种超分辨的二维谱估计方法，它利用的是阵列处理技术，对天线接收数据进行本征分析，将信号数据张成一个空间并对其进行分解，根据正交原理分割成信号子空间和噪声子空间，构造出噪声本征矢量，利用信号子空间与噪声子空间的正交性，在空间谱上形成极值点，从而达到对方向和速度的二维高分辨率估计。

In fault-developed block or in complicated overthrust structural area ,the strata being of various interval velocities may be in touch with each other or the same strata appear many times at the faults because of these factors as fault offset and formation fold, etc.

在断裂发育的断块区或复杂的逆掩构造区，由於断层错动及地层褶皱等因素，具有不同速度特徵的地层在断层处相互接触或同一套地层多次重复。

As long as their velocities remain the same, whether great or small, the stick will be undergoing parallel displacement; that is, it does not turn or change its direction.

只要开始时他们以相同的速度笔直向前走去，只要两人的速度保持一样，那么不论速度的大小如何，棍总是平行地位移，它的方向并不会改变。

In order to finding more perfect fluid field parameter, the fluid fields of different rotor positions and various inlet velocities are calculated.

为了得到更为合理的流体场分布，对转子不同转动位置和不同入口风速条件下的流体场进行了计算。

The time averaged velocities in fluid flow can be measured simply and conveniently by investigating the effect of the pitot tube in supersonic flow.

总压管提供了一种简便快捷的测量流体平均流场的方法，分析其在超音速测量中的影响具有重要意义。

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。