vacuum pumping equipment造句

例句与造句

1. After installation of new vacuum pumping equipment and controls, a new control room, and a new rotation handling fixture, the chamber again became operational in February 1999 . The chamber, which is 33 feet in diameter and 50 feet tall, is constructed of stainless steel.
2. It's difficult to find vacuum pumping equipment in a sentence. 用vacuum pumping equipment造句挺难的