不要把沿圆周的切向加速度与向心加速度混淆。
Do not confuse ever the tangential acceleration, which is along the circumference, with centripetal acceleration.
方向上如果没有加速度，There，is，no，acceleration，in，the，x，direction,但是你最好相信,方向是有加速度的。，in，the，y，direction。,所以当我们处理y的方程时,需要考虑到加速度-,与处理x方向完全不同。
x but you better believe that there is one y So only when we deal with the y equations - does this acceleration come in-- not at all when we deal with the x direction.
它可以产生与万有引力相反的斥力，产生大爆炸中的暴涨，随后使宇宙产生更为平稳的加速度，这种加速度归因为暗能量。
It can produce repulsive gravity to drive cosmic inflation in the big bang, while later on it could generate the more sedate acceleration that is ascribed to dark energy.
当我们考虑到重力时，物体受重力，加速度影响，重力加速度，是一个常数。
When we have gravity an object is influenced by the gravitational acceleration and the gravitational acceleration is a constant.
但是别把这个切向加速度，它是沿着圆周的，和向心加速度混淆。
Do not confuse ever the tangential acceleration, which is along the circumference, with a centripetal acceleration.
在旋转时，力变成力矩，质量变成转动惯量，加速度变成角加速度。
In rotation, force becomes torque, mass becomes moment of inertia, and acceleration becomes angular acceleration.
在此我要提醒你们,它和直觉上的加速度是有很大差异，像你开着车的时候你感觉的加速度,和接下来我们要讲到的加速度。
So, here I should warn you that there is a serious discrepancy between the usual intuitive notion of acceleration, the one that you are aware of when you drive a car and the one that we will be using.
有必要对加速度给出一个严格的定义，加速度,作为一个矢量,是速度的一阶导数。
So, the definition will take effect. The acceleration is as a vector, and the acceleration vector is just the derivative of a velocity vector.
IBM笔记本曾经实现这个特性，用于访问加速器以测量加速度(决定笔记本是否在坠落)。
This feature was implemented previously for IBM laptops using access to an accelerometer to measure acceleration (to determine whether the laptop is falling).
物体无加速度地，悬挂在此，合力为零，加速度亦为零。
This object is hanging there, it's not being accelerated so the net acceleration must be zero.
你可以先跑个加速度的一英里来热热身，再加速度跑个一分钟，然后再恢复到一个平缓的速度跑个一分钟。
You can start adding speed by warming up for a mile and then running at a faster pace (breathing heavy but still in control) for a minute and then recovering at an easy pace for a minute.
是重力，等于质量乘以加速度，由重力导致的加速度是。
Now, gravity, well force, is equal to mass times acceleration, g and the acceleration due to gravity is g.
旋转加速度测量这种材料可以在一个磁盘的形式，线性加速把它当作金属带组成(见上面图片)。
For measuring rotary acceleration this material can be in the form of a disk, for linear acceleration it is formed as a strip of metal (see picture on top).
绳子会说,“啊哈，这家伙需要我来帮忙拉了“,因为此时只靠重力加速度,不足以提供向心加速度了，需要额外的补充
The string will say "Aha! I'm going to pull now on this person "because the gravitational acceleration alone is not enough-- I need some extra pull."
在手机设备移动时，内置加速度传感器报告在三维空间，沿着三个主要轴上的线性加速度改变。
As the mobile device moves, a built-in accelerometer reports linear acceleration changes along the three primary axes in three-dimensional space.
Android有一个令人满意的触摸屏和加速度加速器，作为游戏手机非常棒。
With a satisfactory touch screen and accelerometer, Android serves well as a gaming phone.
如果计算一下，如果你假设，加速度恒定-，那就很好推测了，你会发现，加速度仅仅是，2米每秒的平方。
And if you calculate, if you assume that - the acceleration is constant — it's an easy calculation — it turns out that the acceleration is only two meters per second squared.
压电式加速度变送器是一种常用的加速度计。
The piezoelectric acceleration sensor is a kind of common accelerometer.
他们绝对加速度测量相对不加速，这可能是相关的。
They measure the absolute acceleration not the relative acceleration, which may be relevant.
加速度传感器用来测量设备包括重力加速度在内的加速度。下面的代码说明了如何获取一个默认加速度传感器的对象。
An acceleration sensor measuresthe acceleration applied to the device, including the force of gravity. Thefollowing code shows you how to get an instance of the default accelerationsensor.
速度增加的加速度为正加速度，速度减少的加速度为负加速度。
The acceleration is positive if the speed is increased, negative if speed is decreased.
当列车从高刚度轨道到低刚度轨道时，钢轨垂直力、钢轨加速度、轨枕加速度是由大逐渐减小，没有突变。
When train runs from the rail of high rigidity to the rail of low rigidity, the rail vertical force, rail acceleration and tie acceleration gradually change from large to small.
它们将加速远离圆心，加速度决定于它们离圆心的距离。
They accelerate away from the centre, the acceleration being dependent on the distance of their location from the centre.
这个程序可以计算静电力使结构发生的变形，可以计算加速度作用时微加速度计的输出电压。
The subroutine can be used to calculate the deformation of structures subjected to electric field, and the output voltage of micro-accelerometer subjected to acceleration.
当垂直加速度大于皿力加速度时。被输送物料以微抛形式移动。
The material to be conveyed is moved in microscopic throws, if the vertical acceleration exceeds the acceleration due to gravity.
对于每一个具体的应用案例。可以通过调节偏心力获得最优的设备运行参数{筛分加速度和重力加速度的比值！
The optimum ma-chine index (ration of screen acceleration to acceleration due to gravity) can be adjusted to each particular application by means of the variable out-of-balance force.
最大加速度(峰值加速度)是大地上的一颗粒子承受的加速度。
PGA (peak acceleration) is what is experienced by a particle on the ground.
最大加速度(峰值加速度)是大地上的一颗粒子承受的加速度。
PGA (peak acceleration) is what is experienced by a particle on the ground.
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