billionth

常见例句

A broken networked intelligence may be able to calculate pi to the billionth digit but not forward e-mail to a new address.
一个有损伤的网络智能也许能计算出圆周率的第十亿个数位，却不能向新地址转发邮件；
And the researchers say the galactic map depends on a neutrino's mass being no more than 0.28 electron volts, less than a billionth of the mass of an atom of hydrogen, the lightest element.
研究人员还说，银河系的构成取决于中微子的质量，由此推断出中微子质量的最小上限：不超过0.28电子伏特，该数值还不到一个氢原子质量的十亿分之一。
As well as being very hot, the ionised gas of the corona (called plasma) has a superthin consistency. It is less than a billionth of the density of the hydrogen that makes up the main ball of the Sun.
日冕的电离气体（又叫等离子体）不仅非常炙热，而且异常稀薄，其密度还不到组成太阳主体的氢气密度的十亿分之一。

Nano is a prefix (from the Greek word for dwarf) meaning a billionth of something.
FORBES: Tiny Miracles
The water droplets themselves can be as small as a nanometre (a billionth of a metre) across.
ECONOMIST: To make engines cleaner, add H2O
Broadly speaking, nanotechnology describes work on materials whose critical dimensions are measured in nanometers, or one-billionth of a meter.
FORBES: The Titan of the Teensy