Is this correct, please?
No, there shouldn’t be a spaces behind commas and you don’t need this part:
But I can see that there are still quite big errors on those distances (2 - 4 cm). Are the distances measured correctly?
I still have a problem now, that is, I read the CLI command here in help. Is it necessary to enable params.xml?
No, it is not necessary. It is just optional parameter.
What kind of problem do you have?