例句與造句

1. It was expected to remain in service for fifteen years, however following a malfunction of its Xenon Ion Propulsion System in August 2004, this was reduced.
2. This version takes advantage of such advances as dual-junction gallium arsenide solar cells, new battery technology and the first commercial use of a high-efficiency xenon ion propulsion system ( XIPS ).
3. It's difficult to find xenon ion propulsion system in a sentence. 用xenon ion propulsion system造句挺難的