This distance is known as the 'astronomical unit' or AU.
这个距离被称为“天文单位”或 AU。
And we'll make this distance l.
用l表示这个距离。
D This distance I will measure for you, d.
下面我来为大家测量一下距离。
This distance helps prevent infection.
这段距离帮助预防感染。
This distance is the same as this distance.
这段距离和，这段距离相同。
Y so this distance is also y, same as that.
这段距离也是。
But, why is this distance so important?
但是，为什么这个距离是这样重要呢？
So when is it here and what is this distance?
什么时候到这里，这段距离是多少？
So the radius will just be this distance here.
所以半径就是这里的距离。
I don't know. There's just this distance.
你知道吗，我们之间是有距离的。
He walked this distance each early morning.
他每天很早都要走这段路程。
So we can start. This distance here is r naught.
所以我们开始。这里的长度是r圈。
I can hardly remember him at this distance of time.
时间隔得这么久，我已几乎记不得他了。
I can hardly remember him at this distance of time.
时隔这么久我几乎想不起他来了。
Marsden told us that 000 this distance here is about 10,000.
马斯登告诉我们,这距离约为10
Well, what is this distance? It is just y,or maybe absolute value of y.
这里的距离是什么？是y，准确地说是y的绝对值。
From this distance, the left and right models look pretty much the same.
从这个距离看，左边和右边的两张图看起来基本是一样的。
Whatever it is, it must be huge for you to see it at this distance .
不管它是什么，它一定超出你从这能看到它的距离。
And from this distance, one might never imagine... that it is alive.
从远处看来，人们不能想象…这是活着的。
There is such sweetness in this distance. How would it be to be closer?
在这距离中有一种甜美，如果靠近了又会怎样？
Juno traveled this distance, from the Earth to the Moon, in less than a day.
要走完地月之间的这段距离，朱诺探测器可花不了一天。
From this distance you should be able to see the airfield. Turn towards it.
在这个距离上，你应该能够看到机场，使飞机转向它。
To know how to calculate this distance automatically, here's the key insight.
为了知道如何自动计算这个距离，这儿有一个关键的直觉。
No contrivance can prevent the effect of this distance in weakening government.
来自那遥远统治的影响目前尚无法防止。
It has been proved that this distance measure is more efficient than the Euclidean distance.
实验证明，这种距离测量方式要比欧氏距离测量方式更有效。
By this time the three companions had walked a long distance.
这时，这三个同伴已经走了很长一段路。
This can increase your walking distance.
这样能够增加你的行走距离。
This can increase your walking distance.
这样能够增加你的行走距离。
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