The National Osteoporosis Foundation says a test called Dual-energy X-ray absorptiometry,or DXA, is the best test for osteoporosis.
VOA: special.2010.08.31
The highest probability now is going to be along the x-axis, so that means we're going to have a positive wave function every place where x is positive.
概率最高的地方是沿着x轴,这意味着只要在x,大于零的地方波函数都是正的。
It says, if answer, sorry, imagine x is -16, ANS is 0 is less than -16, no. So what does it do?
对不对?让我们来看看,如果答案,对不起0,如果x是-16的话,ANS为0,小于-16吧,对?
In the memorial, there is the X-1, the first airplane to fly faster than sound.
VOA: special.2010.07.07
So x is not really the coordinate of the end point.
其实并不是弹簧端点的坐标
When he is clear of the B-52, he starts the X-15's rocket engine.
VOA: special.2010.07.07
If you do that at home I think, but don't trust me, you'll find out that X is equal to a third.
如果你回去自己计算一下,你会发现X等于1/3
Pilot Scott Crossfield is in the X-15's only seat.
VOA: special.2010.07.07
Well, maybe this ended up at location 7, 8, 7 8 9 9 so what's really in x is the number 7, 8, 9, which is the address in memory, but again, uninteresting.
嗯,可能这个在地址7,8,9结束,那么在x中实际上是数字,那是内存中的地址,但是,那是没有什么用的。
The work is called "2 x 4 Landscape."
VOA: special.2009.05.06
If x is high relative to x-bar--this is positive-- then y tends to be low relative to its mean y-bar and this is negative.
如果x比x均值要大,这个为正,而y比y均值小,这个为负
A less invasive procedure known as a virtual colonscopy is done with a CT scan that passes x-rays through a patient's abdomen.
VOA: standard.2010.04.07
If X is the number of cells, then the rate of change of X, dX/dt, the rate of change of the cell population, how fast division is taking is proportional to the number of cells I have.
如果X是细胞数目,那么X的改变率就是dX/dt,就是细胞数目的改变率,分裂的速度有多快,和细胞数量呈比例关系
But he said the energy of an X-Y bond is going to be equal to the square root.
但他说XY键的键能,会等于XX键与YY键键能乘积的平方根。
One of the labors of reading Paradise Lost is the reader's obligation to supply the analog for the X, and this poem is filled with such X's.
读的一个麻烦就是,读者需要自行类比出X究竟是什么,偏偏诗中又充满了这种不确定物。
f=0 I would write f of x is in big Oh of n squared.
我写下了。
Right, that divide is, if x is an integer and two is an integer, what's it going to do?
好,这个除法意思是,如果x是个整数而2也是个整数,那么会怎么操作呢?
So you are supposed to know, for example, if x is t^, you're supposed to know dx/dt is nt^.
接下来你就会知道,例如,如果x=t^,那么dx/dt=nt^
All right, it's so if I looked at it, sorry, IF x is less than y, THEN check to see IF x is less than z, and if that's true, print out x is the smallest.
好,代码是这样的,对不起,是不是x比y小,然后去看看是不是x比z小,如果都为真的话,显示x为最小值。
OK, for example, I might say point p1 is that list, x is 1, y is 2.
和y坐标的数组是很简单的1,那么,例如,我可能会说点。
So, in the language of calculus, x is a function of time and this is a particular function.
所以,从微积分的角度来看,x是一个关于时间的函数,而且是个很特殊的函数
if you're at X, let's just call you Mr. X, just to make it clear, so Mr. X is the person at position X.
如果你在X,就叫X先生,只是为了方便区分,所以X先生在X位置上
If when x is low, y also tends to be low, then this will be negative number and so will this, so their product is positive.
如果x取值小,同时y值也小,这将是一个负值,这个也是负值,负负得正,结果是正值
X That's just the special symbol in C that says don't pass X, that is don't pass a copy of X. Rather figure out where x is in memory, where he is in that frame and provide swap the numeric address in RAM of that value so that swap can go do anything it wants at that address.
这在C中是一个特殊的符号,指明不传送,也不是传递X的拷贝,而是指出x在内存中哪个地方,它在那个框架中的哪个地方,提供给swap它的地址值,这样swap就可以使用那个地址中的数据。
The idea is that for any amount of money-- if this x is the amount of money that I receive-- utility as the function of the amount of money I receive is downwardly-concave.
这种观点是对于任何数量的货币,假设我得到x数量的货币,随着货币的增加,边际效用呈,向下凹进去的曲线
Now, just to repeat, again I know I've got some math phobics in the audience, let me just slow down a second, all I'm doing here is I'm saying look at this equation of the pink line, look at this equation of the blue line, X is when they cross, i.e., they are equal to each other.
我再重复一遍,我知道你们之中有些人数学不怎么好,我放慢一点说,我是这么解的,看这条粉线的方程,还有这条蓝线的方程,X是二者的交点,也就是说这点两个方程相等
This is a chest x-ray that would be taken in your doctor's office, for example, or a radiologist's office.
这是一张胸部的X光片,人们会在医生的办公室,或放射科医生的办公室之类的地方见到它
So I start this program by declaring as I did before a global variable X. It is global simply because it is not inside any of my functions.
在程序的开始,我声明,一个全局变量X,它是一个全局的,因为它不在任何一个函数里面。
I'm going to say, gee, p2 is the x value the same in both of them, and if it is, and the y value's the same, then this is the same point, I'm going to return true.
这样的数据对象,我会把它们命名为p1和,我会去查看,看看两个对象中,的x值是不是相同,如果相同的话,就去查看y值是否相同。
- The fact that I've called it X, is really just a programming -- it's a feature of the programming language that I, the human, can now refer to it.
事实是我叫它为X,它实际上只是一个程序-,它是程序的一个特写,我们可以参考使用它。
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