用微波炉加热食物,有清洁、快速、方便等特点,很多家庭都使用微波炉。你知道微波炉是怎么发明出来的吗?在第二次世界大战期间,美国的雷达工程师斯彭塞在做实验时偶然发现口袋里的巧克力块融化发黏,他怀疑是自己的体温引起的,后来,在连续多次的试验中才发现,这是因为微波的热效应带来的 Using microwave oven heating food, there are clean, fast, convenient features, many families use microwave ovens. Did you know that the microwave oven was invented? During the Second World War, when the U.S. radar engineer Spencer accidentally discovered that the chocolate bar in his pocket was melted and sticky, he suspected it was caused by his body temperature and later , Only in a series of experiments found that this is because of the thermal effects of microwaves