| 例句 |
Many chemical reactions require added energy in the form of heat to activate the reaction.很多化学反应需要额外的热能来催化反应。Heat can be provided by oil, gas, or electricity.热能可以由石油、煤气或电来提供。In an electric power plant the heat converts water into high-pressure steam.在发电厂里，热能将水转化成高压蒸汽。Heat from the chimneys is pumped back in to supplement the heating system.烟囱的热能被回吸进供热设备以增强其热力。These chemical processes generate a lot of heat.这些化学过程产生大量的热能。 |