Step-by-step, we have built up this kind of complicated, but, let's face it, surprisingly small expression for the whole winding machine idea that I talked about.

步步地， 建了这种复杂的，但说实话， 令人惊讶的小表达式来述所说的整个缠绕机的概念。

It's a pretty good test to verify for yourself that it's clear what exactly is being measured inside this winding machine.

这是好的测试，可以让你自己验证清楚地知道在这个缠绕机内部到底在测量什么。