You end up using the smallest measurement unit feasible.

最后你可能会选择最小的可行测量单位。

We finished an initial look at our telementry data, it seems that the failure in our inertial measurement unit caused a chain of events in the spacecraft.

我们完成了对遥测数据的初步观察，似乎是惯性测量单元的故障导致了宇宙飞船中的一系列事件。

You could, theoretically, go all the way down to the molecular level for your measurement unit but if you do that, the length of the coast seems to approach infinity.

理论上说，你可以一直将测量单位精确到分子水平，但如果你这样做，海岸的长度似乎会接近于无穷大。