And now instead of assuming that this block is stationary, let's assume that it's moving with a constant velocity.

假设它以匀速运动，假设它以匀速运动。

Try to slow down and speak at a clear, controlled pace.

尽量放慢速度，清晰、匀速地讲话。

Set your car to cruise control or try driving at a consistent speed.

把你车调到巡航控制状态或试着匀速驾驶。

It basically helps the boat float more evenly at all times, making loading at docks and sailing easier.

这有助于货轮始终匀速地漂浮，码头装货和航行更容易。

An object in motion stays in uniform motion unless acted upon by an external force.

除非受到力作，否则运动中物体将保持匀速运动。

When flying along at constant speed, these forces must be perfectly balanced by the tension in the rope.

当匀速飞行时，这些力必须通过绳索张力完平衡。

Eugenie drew her stitches with a uniform motion which revealed to an observer the teeming thoughts of her meditation.

尤金妮以匀速动作画线，向观察者展示了她沉思丰富思想。

You might recognize those terms, because we’ve already talked about them in our episode on uniform circular motion.

您可能认得这些术语， 因为我们已经在匀速圆周运动一集中讨论过它们。

You might recognize those terms, because we've already talked about them in our episode on uniform circular motion.

您可能会认出这些术语，因为我们讨论过它们 已经处于匀速圆周运动循环中。

This is the same type of velocity we used when we talked about the physics of uniform circular motion.

这与我们速度相同 我们讨论了匀速圆周运动物理学。

It's known as uniform circular motion, and it's what occurs when anything moves along a circular path in a consistent way.

它被称为匀速旋转运动 当物体在圆形路径上匀速运动时。

So, let's recall what we know about uniform circular motion, to see what it can tell us about simple harmonic motion.

让我们回忆一下我们对匀速圆周运动了解， 让我们看看它可能会告诉我们关于简谐运动信息。

So, let’s recall what we know about uniform circular motion, to see what it can tell us about simple harmonic motion.

那么，让我们回顾一下我们对匀速圆周运动了解， 看看它能告诉我们什么关于简谐运动。

In uniform circular motion, we’ve described it as the number of radians per second that the marble covers as it moves around the ring.

在匀速圆周运动中，我们将其描述为弹珠绕环移动时每秒覆盖弧度数。

Next, when the acceleration of an object  does not change, when the acceleration remains constant or uniform, we can use these uniformly  accelerated motion equations or UAM equations.

接下来， 当物体加速度不变时，当加速度保持恒定或匀速时，我们可以这些匀速加速运动方程或UAM方程。

I then asked eighteen blind volunteers to feel the wheels and assign one of the following motions to each wheel: wobbling, spinning fast, spinning steadily, jerking or braking.

之后，我邀请了 18 位盲人志愿者去触摸一下这些轮子（图画）并且将以下运动方式指定给每个轮子（图画）：随意转动、快速转动、匀速转动、颠簸和刹车。

But we can also describe an object’s rotation in terms of its tangential velocity. This is the same type of velocity we used when we talked about the physics of uniform circular motion.

但我们也可以根据物体切向速度来描述物体旋转。这与我们在讨论匀速圆周运动物理学时速度类型相同。

Now, we’ve also talked about the frequency of uniform circular motion: It’s the number of revolutions the marble makes around the ring every second, and it’s equal to 1, divided by the period.

现在，我们还谈到了匀速圆周运动频率：它是弹珠每秒绕圆环转圈数，等于 1 除以周期。

87. The slim pirate was wandering the gulf at a constant pace when he overtook an African jewel and ivory boat with courage and persuaded the sailors to lend him all their navigation tools, gun powder, atlases and scopes.

这位精瘦海盗在海湾匀速游弋，他勇敢地超越了一艘（运载） 珠宝和象牙非洲船只，并说服船员们将他们导航工具、火药、地图册和望远镜全都借给他。