从固定的观察者来看运动中的表比静止的慢。
A moving clock runs slower than a stationary one from the perspective of a stationary observer.
固定的观察者来看运动的物体，它在运动方向上似乎会缩小。
A moving object appears to shrink in the direction of motion, as seen by a stationary observer.
在相对论里面，你的观察总是必须会涉及到一个特定的观察者-一个相对于被观察物有着明确的相对运动的观察者。
In relativity, your observations must always be with respect to a particular observer-an observer with a well-defined motion relative to whatever is being observed.
这一切都取决于相对于运动物体的观察者的位置。
It all depends on the observer's position relative to the moving object.
如我们所见的，就圆周上的尺子的运动所引起的尺缩来讲，使观察者A觉得完全是合情合理的。
As we have seen, all this makes perfect sense to observer a in terms of the length contraction produced by the motion of the rulers around the periphery.
同样毫无疑问的是，两个发生在不同地方的事情是不是同时的，取决于观察者的运动状态。
It is also true that two events in different places could be simultaneous or not, depending on the motion of the observer.
对于不随板块运动的观察者，ITRF的速度场是近似的。
To an observer free of plate motion, ITRF velocity field is approximate.
这项工作的有两个优点，一个是PME模型使用，以减少观察者的感知运动抖动由于丢帧到最低限度。
There are two advantages of this work, one is the use of PME model to reduce the viewer's perceived motion jitter due to frame dropping to a minimum.
这项工作的有两个优点，一个是PME模型使用，以减少观察者的感知运动抖动由于丢帧到最低限度。
There are two advantages of this work, one is the use of PME model to reduce the viewer's perceived motion jitter due to frame dropping to a minimum.
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