تعريف nuts-and-bolts في الإنجليزية الإنجليزية القاموس.
The basic, inner workings of something; the fundamentals or basics; that which makes something operate, on a basic level
It's really not so hard, once you know the nuts and bolts of the editing process.
(Slang) The basic working components or practical aspects: “ (proposing) lofty goals without specifying the nuts and bolts of how they are to be achieved.”