a millionth的意思|示意

Next they had to decide on a "natural" length. They chose one ten-millionth of the distance from the Equator to the North Pole.

接下来他们必须决定一种“自然的”长度，他们选择了从赤道到北极距离的一千万分之一，他们将它称作一米。

THE Large Hadron Collider (LHC) is a machine whose experiments will measure events that happen within a millionth of a billionth of a billionth of a second.

大型强子对撞机(LHC)所进行的实验将测量十亿分之一阿秒内发生的事件。

As another example, cosmic rays have a wavelength of lessthan a millionth of a millionth of an inch, while some radio waves have wave lengths of over a mile!

再举另外一个例子，宇宙射线的波长不及万亿亿分之一英寸，而某些无线电波的波长却超过一英里！

In order to make a nuclear explosion, the critical mass must come together within a fraction of a millionth of a second.

为促成一次核爆炸，临界质量必须在一百万分之一秒内聚集在一起。

A a millionth of an inch is an infinitesimal length.

一英寸的百万分之一是极小的长度。

The rat generator operates at the femtowatt scale -- a pico-amp is a million millionth of an amp, so it is a tiny amount of current -- so not very much power.

大鼠发电机以毫微微瓦级在运转（1微微安培是1安培的亿万？ 分之一），因此它只是极少量的电流，产生不了多少电力。