Other tasks under the contract include improvement of electric motor efficiency, integration of solar cells into aircraft wings, and the exploration of hydrogen storage technologies.
合同框架下的其他任务包括，改善电力马达效率、在机翼上集成太阳能电池并探索氢存储技术。
2
It would vastly improve the reliability, availability and efficiency of the electric system.
这样的电网会极大的提高电力系统的可靠性，可用性，以及效率。
3
There is a great deal of disagreement as to the efficiency of electric cars.