由右手定律我们知道,按惯例,它们会逆时针旋转。
According to the right-hand rule, they would be spinning, by our convention, anticlockwise.
为了脱身,其余的壳就会以逆时针方向绕着牙齿旋转。
The rest of the shell is rolled towards the tooth in an anticlockwise direction, in order to remove it.
当分子从一边或另一边撞击这个微型转子时,它会顺时针或逆时针摆动。
This minuscule rotor wiggled clockwise or anticlockwise as molecules bumped into it from one side or the other.
他的想法是,如果你从我这里到你这里,顺时针旋转,你从你这里到我这里是逆时针旋转。
The idea that he had was, if you go from me to you, with a clockwise rotation, you go from you to me by a counterclockwise rotation.
它该取顺时针方向还是逆时针方向。
Would the bottom one be going clockwise or counterclockwise.
这是一个绕原点逆时针旋转的向量场。
It's a vector field that just rotates around the origin counterclockwise.
直白的说,只有逆时针的曲线是成立的。
Straightly speaking, that will only work here if the curve goes counterclockwise.
这个向量场看上去是绕原点逆时针走向的。
为什么定理选择逆时针积分而不是顺时针呢?
Why does the theorem choose counterclockwise over clockwise?
这里它是逆时针的。
在一个平面上,做90度旋转的变换,逆时针方向。
Let's say that in the plane we look at the transformation that does rotation by 90 degrees let's say, counterclockwise.
当你靠近图片时,可以观察到辐射线是逆时针转动的。
As you approach the image, notice that the radial lines appear to rotate counterclockwise.
就会得到一个被逆时针曲线包围的圆盘,法向量向上。
Then, if you had a flat disk with the curve going counterclockwise, the normal vector would go up.
左旋分子就是使偏振光发生左(即逆时针方向)旋的分子。
A left-handed molecule is one that causes polarised light to rotate to the left (ie, anticlockwise).
为了明确锁要怎么打开需要用扳手顺时针、逆时针地转动。
Figure out which way the lock needs to be turned to open by turning the wrench clockwise and then counterclockwise.
我没有改变力的方向,它在转动,从下面看,逆时针方向。
I've not changed the direction of the torque, and now it is rotating, as seen from below, counterclockwise.
有些种类的蜗牛有着从里到外逆时针的螺壳,不过这少见的多。
Some species of snail have shells that spiral out in an anticlockwise direction, but it is much rarer.
如果是下午,那就按逆时针方向转,时针和12点位置的中间。
If it's afternoon, south lies about halfway between the hour hand and twelve o 'clock, counterclockwise.
这时你右手螺旋形旋转-,从你们坐着的位置来看-,是逆时针方向。
When you do that, you rotate your corkscrew-- seen from where you're sitting-- counterclockwise.
由于地球的自转,赤道以北的飓风是逆时针旋转的,赤道以南则是顺时针。
Due to the earth's rotation, hurricanes spin counterclockwise north of the equator and clockwise south of it.
地球有一个内在核心以顺时针方向旋转,其外层核心是以逆时针方向旋转。
The earth has an inner core that rotates clockwise and an outer core that rotates counterclockwise.
我突然觉得床逆时针移动了90度并且被弹射出医院门口,最后掉进海里。
I suddenly felt as if the bed were rotated 90 degrees in a counterclockwise direction and catapulted downward toward the front of the hospital and into the sea.
如果沿着区域边界逆时针走,基本上,是逆时针沿着外面的曲线走。
And so, if I go counterclockwise around this region, basically I go counterclockwise along the outer curve.
这就变成了关于t的积分,这是一个逆时针旋转的整圆,那么t就是从0到2π
Now, the range of values for t, well, we are going counterclockwise around the entire circle so that should go from zero to 2pi.
再说一遍,这里“正的”意味着…,由于是逆时针走向,法向量指向区域外侧的。
Just to reiterate what I said, positively here means, because we are going counterclockwise, the normal vector points out of the region.
清单4内的示例创建了10个随机的四边形其中这些点必须是顺时针或逆时针顺序。
The example in Listing 4 creates 10 random quadrilaterals where the points must be in clockwise or counter-clockwise order.
受到液体分子的冲击,转子有时顺时针方向转动,有时也经常可以逆时针方向转动。
Buffeted by molecules of the fluid, the rotor turns clockwise as often as it does anti-clockwise.
最后,加强锻炼你的中背和腰背部,通过逆时针转动肩部来改进你的姿势。
Finally, strengthen your mid and upper back-and improve your posture-by doing reverse shrugs.
如果运用一下格林公式,你就发现当沿着一个逆时针的曲线时,结果就是区域的面积。
And, now, if you apply Green's theorem, you see that when you have a counterclockwise curve, this will be just the area of the region inside.
如果运用一下格林公式,你就发现当沿着一个逆时针的曲线时,结果就是区域的面积。
And, now, if you apply Green's theorem, you see that when you have a counterclockwise curve, this will be just the area of the region inside.
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