R One is the position vector, r.
一边是位矢。
And, we look at how the position vector changes.
来看看位置矢量的改变。
Well, I claim that the position vector is in the plane.
我断言，这个位置矢量在平面上。
And this, now, is the position vector of the center of mass.
现在，这里是，物体的矢量中心。
We have the cross-product of the position vector to this point times the force.
我们用这个点的，位置向量，乘以这个力。
So, we want to decompose the position vector into a sum of simpler vectors.
故我们是把位置向量，分解为简单向量的和。
Well, it might be good to think of, maybe, the position vector, and maybe its variation.
这还是比较容易想到的，假如这是位置矢量，这是它的变化量。
v0 And there is an angle between ; the position vector and v zero; 0 I call that phi zero.
在方位向量和,之间，有一个夹角;,我们叫它φ
And I can rewrite this in vector form as the gradient dot product the amount by which the position vector has changed.
可以把这些用向量形式重新写下来，就是梯度向量和位置改变量的点积。
Angular momentum: the vector product of the position vector (from a reference point) and the linear momentum of a particle.
角动量：(有参照点)的矢量和粒子线性动量的向量积。
The latter estimates the vehicle position by synchronizing the speed vector and the position vector measured by Beidou system.
后者首先同步车速矢量与北斗卫星测量得到的车辆位置矢量，再根据融合结果估算车辆定位信息。
You could say the position vector at another time, or at any time, but in fact, what's also true is that the velocity vector is in the plane.
你可以说，位置矢量在另一个时间或在任何时间，无论如何，位置矢量始终在这个平面上。
So, if you just look at the position vector, and the velocity vector for any motion at any given time, then together, they determine some plane.
如果你看一下任何时刻运动时的，位置矢量和速度矢量，它们决定了某个平面。
So, OK, so apart from that, I claim now we can find the position of its moving point Q0Q1 because, well, this vector, Q0Q1 we can find from the coordinates of Q0 and Q1.
不管那些了，我断言我们可以找出移动点的位置了,因为对于向量1,我们可以找出Q0和Q1的坐标。
And, the way we can get it, so, it's called usually V, so, V here stands for velocity more than for vector. And, you just get it by taking the derivative of a position vector with respect to time.
根据它的原理，我们通常用v表示,这里的V更代表速率而不是矢量，你能通过,对一个关于时间的位置向量求导得到它。
So, it's the second derivative of a position vector.
它是位置向量的二阶导。
So, the velocity vector is the derivative of a position vector with respect to time.
速度向量，是位置向量关于时间的导数。
So, the position of this point, p, is going to be the same as OP knowing the vector OP from the origin to this moving point.
点p的位置就是，从原点指向这个运动点的向量。
A vector — for example, the camera position — multiplied by the correct matrix for translation results in a vector that moves accordingly.
一个向量——例如，摄像机位置——乘以恰当的平移矩阵从而得到相应移动的向量。
Each aggregate object is identified by its position in the vector.
其中的每一个聚集对象都通过它在向量中的位置进行标识。
r So, if we wait a certain amount of time, we'll have a vector, delta r, which is the change in position vector a various interval of time.
那么如果过一段时间，这就有一个向量△,它是位矢经过一段时间的改变量。
The eye vector can be created in global coordinates by subtracting a surface position from the eye position and transforming the resulting vector into tangent space.
视向量能够在全局坐标系中通过视点坐标减去表面坐标来创建，并且要把结果转换到切线空间中。
The servo control system combines position loop, speed loop, current loop with algorithm of space vector pulse width modulation(SVPWM).
系统采用位置、速度和电流环三环控制，并结合空间矢量脉宽调制（SVPWM）算法。
Based on the vector bender principle of the numerical pipe-bending machine, use PLC and position module to finish the design of bender's control system.
基于数控弯管机的矢量弯管原理，利用P LC和定位模块控制单元相结合的方法来实现弯管机控制系统的设计。
Objective to investigate the application of position vector in balance evaluation of stroke patients with hemiplegia.
目的探讨位置矢量分析在偏瘫患者平衡功能评定中的应用。
This kind of method describes the position and attitude of objects by utilizing Cartesian coordinates of reference base points and Cartesian components of reference base vector.
这种方法是利用参考基点的笛卡尔坐标和参考基矢量的笛卡尔分量描述物体的位置与姿态。
The singular position of similar platform 3upu reached by algebraical method is identical to the position of general 3upu analysized by vector method.
通过代数法得到的相似平台3upu并联机构奇异位置，与用矢量法对一般3upu并联机构所作的分析一致。
Magnetic field vector is a function of the position where the satellite stays. Thus autonomous navigation for small satellite can be achieved by measuring the magnetic field vector.
地磁场矢量是卫星所在位置的函数，通过对地磁场的测量，即可实现对近地小卫星的自主导航。
The minimal displacement vector is the matching position.
这个位移矢量所对应的位置就是匹配位置。
By using the discrete position base-vectors approximating for the continuous position base-vector, the discrete position presentation is constructed.
用离散的位置基矢作为连续位置基矢的近似，构建分立位置表象。
应用推荐