method of round造句

After designing the " Rupertinoe " naval gun, Rupert erected a water-mill on Hackney Marshes for a revolutionary method of rounds at high speed, He is credited with the invention of a form of gunpowder, which when demonstrated to the Royal Society in 1663 had a force of over ten times that of regular powder; a better method for using gunpowder in mining; While recovering from his trepanning treatment Rupert set about inventing new surgical equipment to improve future operations.
It's difficult to find method of round in a sentence. 用method of round造句挺难的