"Milling operations" refers to the process of shaping or cutting materials using a milling machine. It involves removing excess material to create desired shapes or achieve specific dimensions. Full definition
Unfortunately, dogs bought at a pet store are frequently ill because a vast majority of them come from puppy mill operations where nutrition and cleanliness is extremely poor and illnesses are rampant. (thriftyfun.com)
This argument shows a lack of knowledge about how puppy mill operations work. (outthefrontdoor.com)
A specialty mill operation is for ancient grains, organic grains and custom blends. (foodbusinessnews.net)