The digital data of the internet is carried by precision-timed pulses of light, some as short as a hundred picoseconds.

互联网的数字数据由精确定时的光脉冲，有些只有100秒。

A light pulse lasting a hundred picoseconds leads to a depth resolution of a few centimeters, but tomorrow's cars will need to see better than that.

100秒的光脉冲可以产生几厘米的深度分辨率，但是未来的汽车需要看得更清楚。