initial parachute造句

例句与造句

1. Two and half minutes later, an initial parachute will deploy at a height of 21 miles.
2. A small initial parachute was to have popped out at 108, 000 feet and six minutes later, a 35-foot wide parafoil.
3. It's difficult to find initial parachute in a sentence. 用initial parachute造句挺难的