一般的容器,如小瓶子、水杯、茶缸、热水瓶等,都是做成园筒形。为什么不做成正立方形、长立方形……的呢? 原来,在制作容器的时候,主要应当考虑节省材料、制作和使用方便的原則,当然,还要照顾美观大方等其他因素。从节省材料的角度来看,在相同容积的情况下,哪种形状 The general containers, such as small bottles, cups, tea jars, hot water bottles, etc., are all made into cylindrical shapes. Why not make a square, a long square, and so on? Originally, when making containers, you should mainly consider the principles of saving materials, making and using convenience, and of course, taking care of other factors such as beauty. From a material saving perspective, which shape is the same volume