太阳能飞机的动力系统包括：太阳电池、可再生燃料电池、电动机和螺旋桨等。
The aircraft power system consists of photovoltaic cells, a regenerative fuel cell, a engine and propeller.
本文介绍了一体式可再生燃料电池的研究进展，并提出了目前亟待解决的问题。
In this paper, the recent progress of unitized regenerative fuel cells is introduced, and the issues need to be developed or solved are also put forward.
首先对太阳能光伏发电、风力发电、燃料电池发电及混合能源可再生能源发电系统进行了简述。
In this paper, solar photovoltaic generation, wind generation, fuel cell generation and hybrid renewable energy generation systems have been reviewed briefly.
燃料电池发动机很容易得到，而这种能源的可再生性使其特别具有吸引力。
The fact that fuel-cell engines utilize easily available, renewable resources makes them particularly attractive.
燃料电池发动机很容易得到，而这种能源的可再生性使其特别具有吸引力。
The fact that fuel-cell engines utilize easily available, renewable resources makes them particularly attractive.
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