例句與造句

1. Needless to say, there are enormous engineering problems to solve in converting the heat into useful energy .
   當(dāng)然，要把這種熱力轉(zhuǎn)變?yōu)橛杏玫哪茉矗€有許多工程問題有待解決。
2. 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(jìn)行了50多年研究，耗費(fèi)了幾十億美元，至今無人可以在地球上實(shí)現(xiàn)聚變反應(yīng)，制造可以使用的能量。
3. 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(shí)現(xiàn)在整條能源供應(yīng)鏈上，從初級能源（例如原油）的轉(zhuǎn)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(jī)） 。
4. 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(zhì)能和其他直接或者通過加工、轉(zhuǎn)換而取得有用能的各種資源。
5. It's difficult to find useful energy in a sentence. 用useful energy造句挺難的