例句與造句

1. Twenty-five minutes later, at 05 : 51 EDT, " Atlantis " began feeling the effects of the atmosphere at an altitude of approximately ( 80 mi ), and soon after began its " roll reversal banking " in order to bleed off most of the / h ( 17, 000 mph ) she was traveling at, ready for landing at less than / h ( 470 mph ).
2. Shortly after 16 : 00 UTC, the crew began to get into their launch and entry suits, and ingress into their respective seats for landing . " Discovery " began to feel the effects of gravity around, as it traveled above the North Pacific Ocean at 17 : 30 UTC . As the orbiter descended, Melroy initiated a series of " rolls ", and roll reversals, which serve to create friction and bleed off additional speed.
3. It's difficult to find roll reversal in a sentence. 用roll reversal造句挺難的