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
In some cases, the use of pulse current still can reduce the lumber, improve the hydrogen cathodic current efficiency, thus reduce pinhole, striped and hydrogen brittleness, etc.
在某些场合下，使用脉冲电流还可以减少氢的析出、提高阴极电流效率，从而减少针孔、条纹和氢脆等。
3
In the past, the process, which is known as electrohydrogenesis, has had poor efficiency rates and low hydrogen yields.