With a low-pitched rumbling noise, the propeller began to rotate.
随着低沉的隆隆声，螺旋桨开始旋转起来。
Stay well away from the helicopter when its blades start to rotate.
直升机的螺旋桨开始转动时，尽量离远点儿。
This large gear drives the small one to rotate the drum.
这个大齿轮带动小齿轮使滚筒旋转。
This large gear turns the small one to rotate the cylinder.
这个大齿轮带动小齿轮使滚筒旋转。
You can rotate your square by defining how you draw your object.
您可以通过定义对象的绘制方式来旋转您的正方形。
No worries there. We just have to close in with the camera and rotate it.
不用担心这里。我们只需将它拉近摄像机，并旋转就可以了。
In this example, you rotate a square on its center, but do not fill the square.
在这个例子中，您会以中心为原点旋转一个正方形，但不填充这个正方形。
In this case, I rotate the line around the center of the movie with the code shown below.
在本例中，我用下面所示的代码使这条直线围绕动画的中心旋转。
The number that you choose to rotate your letters by is what we call in cryptography, a key.
你选择的旋转字母的数量就是我们在密码学中所说的密匙。
In the central machine room an array of ten hydraulic motors then begins to rotate the central axle.
在中央机房，十个液压发动机开始旋转中心轴。
The axle connects to the outer arms of the Wheel, which begin to rotate at a speed of 1/8 of a revolution per minute.
车轴连接到这个车轮的外臂，外臂开始以每分钟1/8转的速度旋转。
It takes just 1.5 kilowatt-hours (5.4 M J) energy to rotate the Wheel -roughly the same as boiling eight small domestic kettles of water.
转动轮子只需要1.5千瓦时（5.4兆焦耳）的能量，这与使用8壶家用小水壶的能量大致相同。
If the thighbone doesn't rotate enough, you'll apply huge pinching pressure to the meniscus—as if your shinbone and thighbone were a giant pair of pliers.
如果大腿骨旋转不够充分，你会把巨大的拧压施加到到半月板上——胫骨和大腿骨就好像一把巨大的钳子。
The members of the club can rotate and one person can do all the preparation for the evening.
该俱乐部的成员可轮流工作，一个人可做晚会所有的准备工作。
We rotate the night shift so no one has to do it all the time.
我们轮流值夜班，这样就不会有人总是夜班了。
This object is going to rotate.
物体将要开始旋转。
SPIN: Like Stars, Black Holes rotate.
旋转：黑洞象星星一样旋转。
Then I will rotate it by 180 degrees.
那就相当于一次旋转了180度。
To rotate to the left, use a negative number.
要向左旋转，请使用负数。
You can also zoom, rotate, and crop your images.
你也能放大、翻转以及裁剪你的图片。
Will we have to know how to rotate vectors and so on?
我们需不需要掌握如何旋转向量这些知识点？
Now let's look at an object that we're going to rotate.
下面，假设我们要转动某物体。
Sometimes the screen image doesn’t rotate when it should.
有时，屏幕图像在应该旋转的时候却不旋转。
As you can see, the backdrop rotates as we rotate the view.
就像你所看到的，在我们转动视角的同时，背景幕也随之转动。
These functions allow you to rotate around a given axis.
这些函数允许您按一个指定轴旋转。
These functions allow you to rotate around a given axis.
这些函数允许您按一个指定轴旋转。
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