用废矿坑储米粮日本的一些专家认为，废弃的矿坑由于气温稳定，是标准的天然低温冰箱，可以用来当粮仓，储存米粮。根据测定，在废弃的矿坑内，夏季温度为１８℃，冬季温度为１２℃，年平均温度为１５℃左右，与一般的低温仓库的温度差不多。过去，北海道日本粮食厅和冈山... Storing grain with waste pit Some experts in Japan believe that abandoned mine pit is a standard natural low temperature refrigerator which can be used as a granary to store rice grains due to the stable temperature. According to the measurement, in the abandoned pits, the temperature in summer is 18 ° C, the temperature in winter is 12 ° C, and the average annual temperature is about 15 ° C, which is similar to that of a general low-temperature warehouse. In the past, Japan Hokkaido Food Court and Okayama ...