例句與造句

1. "The shuttle is not going to fly forever, " said Ed Gabris, division director for NASA's advanced launch systems.
2. "The winged-body approach, we feel, is the least risky because you have the most data ( on it ), " said Charles Scottoline, Rockwell's program director for advanced launch systems.
3. Consideration was given to continuing the Jarvis project as a private venture, however nothing further came of the proposal, while the entire Advanced Launch System development effort was scaled back into the National Launch System before being cancelled in 1992.
4. A succession of Pentagon-led programs called the Advanced Launch System, the National Launch System and Spacelifter as well as a joint effort with NASA called the National Aerospace Plane all faltered over the past decade from lack of legislative backing.
5. The next two developments of the Ariane rocket were intermediate stages in the development of a more advanced launch system, the Ariane 4, which operated between 1988 and 2003 and established ESA as the world leader in commercial space launches in the 1990s.
6. It's difficult to find advanced launch system in a sentence. 用advanced launch system造句挺難的
7. By 1989, the Bush Administration inherited a plan for development of the Advanced Launch System that called for the Defense Acquisition Board to approve advanced development of the system in early 1990, leading to a first flight in 1998 and a full operational capability in 2000.
8. "' Jarvis "'was a proposed American medium-lift launch vehicle for space launch, designed by Hughes Aircraft and Boeing during the mid-1980s as part of the joint United States Air Force ( USAF ) / National Aeronautics and Space Administration ( NASA ) Advanced Launch System ( ALS ) study.
9. Submitted as part of the Advanced Launch System studies jointly conducted by the United States Air Force and NASA for a new heavy-lift rocket system capable of substituting for the Space Shuttle and expanding upon its capabilities, Jarvis was planned as a three-stage rocket capable of launching a payload of up to to low earth orbit, or to geosynchronous orbit; the rocket was projected to cost under $ 300 million USD per launch; some estimates had a per-launch cost of the Jarvis vehicle at a cost as low as $ 150 million each, with $ 1 billion being cited as the projected development cost of the rocket system.