The motivation for the research and development of fuel cells is mainly related to their potentially light weight, low volume, and high efficiency of energy conversion, etc.
燃料电池研究与开发的原因主要在于其质量轻、体积小、能量转换效率高等。
2
The effects of the velocity distribution uniformity on conversionefficiency and durability and pressure loss on engine power and fuel economy have been discussed.
讨论了流速分布均匀性对催化转化器转化效率和载体寿命的影响；压力损失对发动机动力性、经济性的影响。
3
The system produces fuel on demand in real-time operation and sets up an integrated environment of optimum parameters so that a water-to-fuelconversion process works at high efficiency.