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。
VOA常速英语_科技
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。
传说之境
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.
A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same quantity. Any other value of that quantity can be expressed as a simple multiple of the unit of measurement.