轨迹

Usually the frame size and the frame step are fixed when computing the fractal dimension trajectory.

通常语音信号的短时分维轨迹是在固定帧长和帧移下计算的，这样得到的分维轨迹可能无法准确反映语音信号的分形特征。

In the system of modern manufacture, NC machining equipment is the core of manufacture system and the important subassembly of the modern manufacture system.

数控加工中的一个重要环节是设计出刀具轨迹，刀具轨迹设计质量的好坏，将直接影响零件的加工质量及加工成本。

And it is noted that the velocity field in a hydrocyclone is divided to two areas, i.e. the outer para-free-vortex and the inner para-forced vortex. The boundary surface of the velocity field is the maximum tangent velocity track surface, which is a cylinder when the hydrocyclones structure is reasonable.

分析研究结果表明，旋流器的切向速度场由外部准自由涡和内部准强制涡两个区域构成，其分界面为最大切向速度vtmax的轨迹面，结构设计合理时，此轨迹面为一圆柱面。

The topology analysis of vector field around "a singular point" is refered in the study of the topology of three-dimensional symmetric tensor field around a simple degenerated point, which can be classified into three types of hyperstreamline sectors:"hyperbolic sector","parabolic sector" and "elliptic sector".

本文参考矢量场中"奇点"附近的矢量轨迹分布结构，研究了张量场中"退化点"附近的特征向量分布形态。确定了"退化点"附近"超流线体"轨迹的三种形态。"抛物扇区"、"双曲扇区"、"椭圆扇区"及其这些扇区的边界。

The track of the aircraft relative to the ground. Take wind into account

轨迹： 飞机相对于地面的运动轨迹。

To implement this guidance law, the thesis purposed one new target state model and adaptive algorithm for radar homing missile attacking maneuvering target, which is based on the slowly changing of the tangential acceleration and the normal acceleration of the spiral maneuvering and snaking maneuvering in target trace frame coordinate system, and on that the most of them equipped with Strapdown Inertial Navigation System, to meet the demand of the advanced homing missile to target state, It can estimate target position, velocity and acceleration accurately by real-time processing.

为了实现该制导律，重点针对先进自寻的制导律对目标机动运动状态的需求和导弹系统大都具有捷联惯导系统的条件，基于目标螺旋机动和蛇形机动的切向加速度和法向加速度在目标轨迹活动标架上缓变的特点，本文提出了一种建立在目标轨迹活动标架上的运动状态方程和扩展观测方程的自适应估计算法。

A comparison is conducted to evaluate the performance of the optical mouse, the touch pad and the track point.

结果显示虚拟追踪球手套滑鼠的移动效能虽然不及一般桌上型的光学滑鼠，但在与同为行动装置的触碰板以及轨迹杆比较，虚拟追踪球手套滑鼠却以将近高出一倍的移动效率远远超过触碰板以及轨迹杆。

Based on analysis of generation algorithms of cutter－ contact point trace in NC machining of sculptured surfaces,in this paper,a property on continuity of cutter－ contact point trace is suggested and proved.

在分析国内外关于自由曲面数控加工中刀位点轨迹生成算法的基础上，提出了一个关于刀触点轨迹连续性的命题并加以证明。

The round "trackball" was later dropped in favour of a simple "trackpad".

圆圆的"轨迹球"后来退让给简单的"轨迹板"。

The main structure uses the design of the ellipse trochoid of the 4 bar strider. We made the ellipse trochoid to be the optimum state for reaching the simulation effect when people are running. Besides, the design can switch to be a new six-bar strider. It uses a link bar to bind the axis pillar and the pedal also made the pedal slide free to reach the sport effect.

研究内容主要著重於二合一椭圆机之椭圆轨迹最佳化及机构运动合成，主要构造系利用一四连杆椭圆机之设计方式，并将其椭圆轨迹最佳化，以期更符合模拟人跑步时的步伐；另外，此设计亦可转换为一新型之六连杆踏步机，其系利用一连杆连接踏板及中心柱，并使踏板可在滑槽上自由移动，使其可达到踏步之运动效果。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。