Needless to say, there are enormous engineering problems to solve in converting the heat into useful energy . 当然，要把这种热力转变为有用的能源，还有许多工程问题有待解决。
As the atmosphere slowly became rich in oxygen, life changed to take advantage of oxygen as a source of energy . 随着大气中氧慢慢地增多，生命也就变得喜欢用氧作为自己的能源。
Step by step, directed by energy control, the disrupted distribution system was returning to a state of order . 在能源控制中心的指挥下，混乱的配电系统正一步步地回到正常状况。
It is inconceivable that so strong a source of energy can be switched on and off in as little time as 1/30 second . 真难以想象如此强的能源可在130秒这样短的时间内关闭和开启。
Current practices do not use such high-quality energy to amplify total energy storage in agricultural production . 现行的措施不能应用这些优质能源来扩大农业生产中能的总贮存量。
Land and other resources should not constrain the development of biomass as a renewable energy source for the future . 土地和其它资源应该不妨碍作为未来可更新能源的生物量的发展。
Such processes add significantly to the cost of producing the fuel oil in both monetary and energy consumption terms . 这些工艺装置既花钱又消耗能源，从而大大增加了燃料油的成本。
Brazil is trying to develop energy from its immense resources of biological materials by literally growing its own fuel . 巴西脚踏实地生产自己的燃料，正试图从丰富的生物资源中开发能源。
