Schwartz说，在该四面楚歌计划中的“四星”自信已经被强化，因为该飞机今年的飞行试验计划已经大大提前。
The four-star's confidence in the embattled program has been boosted because the plane is considerably ahead of its flight test schedule for this year.
该公司希望他们的疫苗在明年进入人体临床试验，并且计划继续保持在航天飞机任务和国际空间站之中进行更多的实验。
The company hopes for its vaccine to enter human clinical trials next year, and plans to continue more experiments on the remaining space shuttle missions and the International space Station.
并且高超音速飞机目前只演示过由其他飞行器携带小型无人机至高速，而且其他计划中的试验飞行器同样太小不能坐人。
Plus, hypersonic flight has so far only been demonstrated for small unpiloted craft carried to high speed by other vehicles - and other planned experimental craft are too small to carry a pilot.
应用推荐