电能作为当前最优秀的二次能源之一, 是社会与经济发展的基础.

Electric power, as the best one in secondary energy, is the foundation of economy.

清洁能源装置在实际应用中，往往因为功率的限制需要与二次能源装置构成一个混合动力供电系统。

Clean energy resources devices needed secondary energy devices to constitute a hybrid power supply system, because they were often restricted by their power in practical applications.

摘要氢气作为二次能源将成为未来主要能源之一.

The developing trends and preparation technology of producing hydrogen from methane are introduced.