And we're working on a bigger plane -- 220-foot span -- and an intermediate-size, one with a regenerative fuel cell that can store excess energy during the day, feed it back at night, and stay up 65,000 feet for months at a time.
而我们正在做一架更大的的飞机--跨度220英尺-- 和一架带再生燃料电池的中型飞机 它可以在白天储存过多的能量，在夜间把它输回去， 每次可以几个月昼夜停留在65，000的高度。