what does "x-mbx-used-weight" mean in response header of restful api

I see “x-mbx-used-weight” and “x-mbx-used-weight-1m” in response header at the same time.
What is the difference? What is the accurate definition of “x-mbx-used-weight”?

You can understand more by searching x-mbx-used-weight at https://binance-docs.github.io/apidocs/spot/en/#limits

Thanks a lot!