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.
圆周的距离是围绕一个封闭的曲线。
该圆周的圆心即定位的中心孔位置。
The center of circle is the position of the centre hole for positioning.
在圆周的圆心竖一根与盘面垂直的直杆。
进入那使方向模糊以便它是相同于圆周的线。
Enter the Blur Direction so that it is the same as the line in the circle.
上述函数决定离开圆周的偏移量和各线段的长度。
The functions above determine the offset from the circle edge and length of each line.
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.
绕转之后移动方向为自南向北，也是沿圆周的切线运动。
Both of approaching and returning movements are along the tangent of the circle.
这是清理毛刺和一个环形的制件的内在和外面圆周的边缘精整的例子。
This is an example of deburring and edge finishing of the inner and outer circumferences of a ring-shaped workpiece.
在纯滚动情况下，Q的速度，和圆周的速度，如果你们看得到-，是相同的。
When we have pure roll, the velocity of this point Q, and the velocity of the circumference, - if you can read that — are the same.
它的变迁从内部而言，可以看成是一个不同半径组成的大小不等圆周的漩涡。
Seen from interior, its vicissitude is just like the whirlpool made of various circumferences with different radius.
譬如，在几何学里我们必须假定，一个圆周的圈线是由无限多喝无限小的直线形成的。
Thus in geometry you are told to conceive the circumference of a circle as formed of an infinite number of infinitely small straight lines.
一般一个完美圆周的偏心值为0，而约有一半的系外行星的偏心值在0.25或者更高。
Where a perfect circle has an eccentricity value of zero, roughly half of exoplanets seen thus far have an eccentricity of 0.25 or greater.
形成沿径向相对于中心轴隔开第二距离以限定外圆周的第二多个导电性通孔(104)。
A second plurality of conductive vias (104) is formed radially spaced a second distance about the central axis so as to define an outer circumference.
打开包装。展开湿巾。然后以圆周的滑动来擦拭镜片表面，直到镜片干爽，本产品价格一次性使用。
Open the package, unfold the wet wipe, wipe the glasses'surface with round slip until the glasses cleaned. The wet wipe is disposable.
先前的研究也已经证明了自闭症儿童大脑的“过度生长”，但这些研究都是关于大脑圆周的测量或磁共振成像，专家说。
Prior research has also documented "brain overgrowth" in autistic children, but those studies were done by measuring brain circumference or MRIs, experts said.
圆周上各点离圆心的距离相等。
假设您想要创建一个放射状的列表框，将其内容沿圆周排列，就像一个旋转木马。
Imagine you want to create a radial list box that arranges its content along a circle, like a carousel.
现在所有的质量都在圆周上，现在它会花更多的时间。
Now all the mass is at the circumference, and now it takes more time.
进化论的作者、年轻的英国植物学家查尔斯·达尔文，是第一个看到落叶柏树干圆周长达一百三十英尺的欧洲人。
A young English botanist named Charles Darwin, the author of the theory of evolution, was the first European to see alerces, with trunks that had a circumference of 130 feet.
地球的圆周约为25,000英里。
我教她在一个圆周中的附近跑，然后去一个方法回过头而且去另外一。
I taught her to run around in a circle, to go one way then turn around and go another.
所以所有的材料都是在圆周上，现在它会花更多的时间。
So now all the mass is at the circumference, and now it takes more time.
我跳起来，旋转，绕着每个星球的圆周行进，玩笑般的对付着地心引力。
I leap, I spin, I navigate the circumference of each spherical planet, toying with gravity.
这是导致速度，沿着圆周改变的因素。
This is the one that makes the speed change along the circumference.
亚里士多德理论都是基于天堂里的物体，做圆周运动这一基础思想而展开的。
Now, the Aristotelian theory, as I said, was based on the idea that all heavenly bodies basically move in circles.
在太阳系，大多数的行星都各自拥有统一的圆周轨道。
In our solar system, planets for the most part have fairly uniform circular orbits.
pai是一个数学常量，代表圆周长跟直径的比值。
It's a mathematical constant representing the ratio of any circle's circumference to its diameter.
pai是一个数学常量，代表圆周长跟直径的比值。
It's a mathematical constant representing the ratio of any circle's circumference to its diameter.
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