That change in distance is tiny, less than a billionth of a meter.

这种间隙的改变很微小 小于十亿分之一米。

The UN forecasts that the 12th billionth human will never be born at all.

联合国预测，第12个十亿人将不会再出生。

The result is an emulsion of droplets between 100 and 300 nanometres (billionths of a metre) across.

结果会产生一种乳状液，其微滴直径在100到300纳米（纳米为一米的10亿分之一）之间。

Less than a hundred nanograms — that's billionths of a gram — is enough to kill an adult.

只有不到 100 纳克——大约只有十亿分之一克——已经足够送一个成年人去阎王爷了。

As the 8 billionth person is born, here's how Africa will shape the future of the planet's population.

随着第 80 亿人的出生，非洲将如何塑造地球人口的未来。

This fiber laser is pulsing anywhere and those pulses are lasting as little as a billionth of a second.

这种光纤激光器可以在任何地方发出脉冲，这些脉冲的持续时间只有十亿分之一秒。

And it's still like a billionth of that.

索伦: 而且它仍然像那的十亿分之一。

For the millionth and billionth time.

百万次和十亿次。

These wires are super tiny, each just a billionth of a meter (three-billionths of a foot) wide.

这些电线非常细小， 每根电线只有十亿分之一米（十亿分之三十英尺）宽。

A couple of years ago, the company sold its one billionth tract.

几年前，该公司售出了第十亿张唱片。