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"In theory," says Vallentine, "this can create a high enough temperature to generate super-heated steam.

2018年12月六级真题（第二套）听力 Section C

According to Harry Vallentine, a Canadian engineer who is researching modern steam technology, a special tank measuring 2 by 10 metres could store over 750 kilowatt hours of energy as high pressure steam, enough to pull a two-cart train for an hour or so.

2018年12月六级真题（第二套）听力 Section C