operating ring造句

It was designed as a large spinning mill using the cheaper to operate ring frame.
It's her " flirting ring " _ a purple plastic, battery-operated ring that flashes red and green lights.
Kidney grafts are his specialty, but he performs pancreas and, less often, liver transplants _ the hospital already had a team of liver transplant surgeons who, he says modestly, can " operate rings around " him.
It's difficult to find operating ring in a sentence. 用operating ring造句挺难的