The inside of the box will stay several degrees cooler than the outside air temperature. And this may be cool enough to keep foods fresh, at least for a short time.
盒子里面将比外面空气温度低几度，这些对保持食物新鲜就足够，至少在短时间内。
3
The utility model relates to an inflatable resistance grate used for a clinker pushing grate cooler. The resistance grate is shaped like a box;