Needless to say, there are enormous engineering problems to solve in converting the heat into useful energy . 當然,要把這種熱力轉變?yōu)橛杏玫哪茉矗€有許多工程問題有待解決。
Unfortunately , in spite of more than 50 years ' work and billions of dollars of backing , no one has yet managed to get an earth - bound fusion reaction to produce useful energy 遺憾的是,盡管進行了50多年研究,耗費了幾十億美元,至今無人可以在地球上實現(xiàn)聚變反應,制造可以使用的能量。
Improved efficiencies can be realized all along the energy chain , from the conversion of primary energy ( oil , for example ) to energy carriers ( such as electricity ) and finally to useful energy ( the heat in your toaster ) 效率的提升可以實現(xiàn)在整條能源供應鏈上,從初級能源(例如原油)的轉換,到能源輸送(例如電力) ,以及最后的能源使用(例如家用烤面包機) 。
Article 2 the term " energy " as used in this law refers to coal , crude oil , natural gas , power , coke , coal gas , heat , processed oil , liquefied petroleum gas , biomass energy and other resources from which useful energy can be derived directly or through processing or conversion 第二條本法所稱能源,是指煤炭、原油、天然氣、電力、焦炭、煤氣、熱力、成品油、液化石油氣、生物質能和其他直接或者通過加工、轉換而取得有用能的各種資源。