Spraying water on storage pools full of overheating spent uranium fuel rods is not very effective because rising steam dissipates much of the incoming water.
向装有过热铀燃料棒的储存池里撒水效率不高,上升的蒸汽驱散了大量水分。
James Watt spent 20 years laboring to perfect his steam engine.
詹姆斯·瓦特用了二十年工夫来改善他发明的蒸汽引擎。
James Watt spent 20 years laboring to perfect his steam engine.
詹姆斯·瓦特用了二十年工夫来改善他发明的蒸汽引擎。
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