被炉是在冬天里使用的、日本独特的生活用品。它是用来温暖下半身的。将炭火或电器等热源固定在桌下，为了不让热量外流，在木架的上面盖上一条被褥，一家人坐在被炉的四周欢乐，构成了一幅地道的日本冬天的风情画。
最棒的是这一过程能够自我供能——钚被裂变破坏时释放能量，这一能量可以供给燃烧炉。
The best part is that the process can power itself—plutonium releases energy as it destroyed by fission, and that energy can power the burner.
工业废料，如煮皂炉里的灰，第一次开始在城市里被收集，作为人工肥料在农村出售。
For the first time industrial waste, such as ash from the soap-boilers, was collected in the cities and sold in the country as artificial fertilizer.
戴维在一家炉厂工作。工厂外部的墙被漆成了蓝色。
David worked in an oven factory. The outer walls of the factory were painted blue.
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