A squadron of F-15 fighters is on its way home.
一个F-15战斗机中队正在返程途中。
我们叫他f的导数。
波出现率降低，潜伏期延长或消失；
That is what we mean by critical point of f.
这个也就是临界点的定义。
You have first to compute the curl of f.
首先你需要计算f的旋度。
Most American car horns honk in the key of F.
大多数汽车喇叭的叫声是用钥匙F发出来的。 。
So all together I get this change as a value of f.
那么把它们加在一起就得到了f的总变化量。
The one today is for integrating the normal component of F.
今天这个是用来求F的法向分量的积分的。
That is the contour plot of f with a hyperbola on top of it.
上面这个是f的等高线，黄色的就是双曲线。
But it's a new vector field that you can build out of f.
这是一个新的向量场，可以用f来建立。
The result of the first value, F(0), is 0, and the result of F(1) is 1.
第一个值F(0)的结果是 0，F(1)的结果是 1。
That means that the gradient of f is perpendicular to the level set of g.
也就是说f的梯度向量,应该与g的水平集垂直。
So if this distance, a if this radius is a then the magnitude of F will just be a.
所以的话，如果这半径是a，那么F的值就是。
In Listing 24, the constructor of F is called before F2; likewise for the destructor.
在清单24 中，先调用F的构造函数，然后是F2 的；对于销毁函数也是这样。
The method is simple, accurate and can be used to control the internal quality of F.
本方法简便、准确、 重复性好，可用于平贝母的质量控制。
Remember the general method is that we first look at the inner integral, here integral of f dy.
一般是,先考虑内积分，这里即f对dy的积分。
The first observation is we cannot use our usual method of looking for critical points of f.
好，在这种情况下我们首先发现,之前用来找极值的方法都不可用。
The freezing conditions, not to mention polar bears, should put of f any unwelcome visitors.
这样严寒的天气，巳足以将任何不速之客拒之门外，更不用说北极熊了。
But after America banned exports of F-22s, even to its closest Allies, Japan has had to look elsewhere.
可就在美国禁止对F - 22的出口之后，就连关系最铁的盟友们也买不到，日本只好转向别处。
Yes, there was the annual celebration of F. T.’s birthday, with hisbuddies taking her father out for steak and stories.
是的，每年都会为F.T.庆祝生日，由他的朋友带他父亲到郊外烤牛排、讲故事。
For example, the focal length of an 8" (203.2mm) aperture with a focal ratio of f/10 would be 203.2 x 10 = 2032mm.
比如，孔径为8英寸(203.2mm)，焦比为f/10的透镜，其焦距为203.2x 10 = 2032mm。
So, we'll call that the double integral of our region, R, of f of xy dA and I will have to explain what the notation means.
称之为区域R上fdA的二重积分,会向大家解释这些符号的含义的。
We are trying to look for the smallest value of f that will f When does that happen? Well, I have to backtrack a little bit.
所以我们要尝试在这个双曲线上找到,所能达到的最小值。，actually，be，realized，on，the，hyperbola。,那这个点在什么地方呢，这，我就要倒后退一下。
But the current inventory of F-15s can be economically maintained in a structurally sound condition until 2015 or later.
但目前库存的F - 15型飞机在经济上能够维持一个稳健的状态，直到2015年或稍后。
Poland does best: Barack Obama will announce the stationing of a squadron of F-16s there when he visits Warsaw on May 27th.
波兰做得最好：Barack Obama即将在5月27日访问华沙时宣布进驻一个F - 16空军中队。
Remember, partial f, partial x was obtained by y That means I am slicing the graph of f by a plane that is parallel to the x, z plane.
要记得，在这里的fx中,是作为常量保持不变的。，looking，at，the，situation，where，y，is，held，constant。,这是我用一个平行于xz坐标系的平面,横截了f，所得到的图形。
Remember, partial f, partial x was obtained by y That means I am slicing the graph of f by a plane that is parallel to the x, z plane.
要记得，在这里的fx中,是作为常量保持不变的。，looking，at，the，situation，where，y，is，held，constant。,这是我用一个平行于xz坐标系的平面,横截了f，所得到的图形。
应用推荐