In the world of technology, nm-method is a way of measuring how small things are. "Nm" stands for "nanometer," which is a really, really small unit of measurement. Think about it like this: a meter is how we measure distance, like how far away one thing is from another. But a nanometer is like a tiny, tiny fraction of a meter.
Imagine a piece of hair on your head. That piece of hair might be around 100,000 nanometers wide! That's how small things can get. So when people talk about "nm-method," they're using this really precise system of measurement to figure out just how small something is.
Scientists and engineers use nm-method when they're building things like computer chips or other electronics. They need to make sure that all the tiny parts are the right size and in the right place, and nm-method helps them do that. Basically, they use special machines and tools that can measure things down to the nanometer level, so they can be really precise.
So that's nm-method in a nutshell: it's a way of measuring teeny, tiny things with incredible precision.