论文部分内容阅读
在第16届“国际科学与和平周”全国中小学(江苏地区)金匙科技竞赛赛题中关于微波炉的应用有这样一道题目:食物的温度之所以在微波炉里会升高是因为食物内的水分子在微波极高振荡频率下高速振动,相互摩擦产生了热。一般细菌在微波炉中的致死温度为70℃,这是微波的什么效应? 答案:这主要是微波的生物效应。由于细菌的细胞吸收微波的能力优于其他介质,在较低温度下,细菌的细胞就会破裂死亡,其致死温度在70℃左右。
In the 16th “International Science and Peace Week” national primary and secondary school (Jiangsu region) Golden Key technology competition title on the application of microwave ovens has such a problem: the temperature of food in the microwave will rise because of the food inside The water molecules vibrate at a high frequency of microwaves at high speed and rub against each other to generate heat. The lethal temperature of general bacteria in a microwave oven is 70°C. What is the effect of microwaves? Answer: This is mainly the biological effect of microwaves. Because the bacteria’s ability to absorb microwaves is superior to other media, at a lower temperature, bacterial cells will die and die. The lethal temperature is around 70°C.