万分之一

The scale of the map is 1 : 460000.

这张地图的比例尺是四十六万分之一。

One nanosecond is equal to one - thousandth of one - millionth of one second.

1毫微秒等于一秒的十万万分之一。

Now, It´says, the number is one in two hundred fifty thousand.

但是现在， 失误比率是二十五万分之一。

Microseconds later the universe inflated to become billions of miles wide.

一百万分之一秒之后，宇宙就膨胀到几十亿英里宽。

This is a map on the scale of one to fifty thousand.

这是一张五万分之一的地图。