所谓钱乃体现“天圆地方”这说法纯粹附会扯淡。真实情况是古代冶炼技术十分操蛋,铸造的钱边缘有毛刺,需用锉刀磨平,磨平肯定要批量操作,于是把钱穿在一起锉。如中间是圆孔,用力它就滚动,为磨边只能铸造成方形。一般的铸造又是浇灌法,技术限制图案不可能细致精 The so-called money is to reflect “round place ” This is purely nonsense. The real situation is that the ancient smelting technology is very fussy, the edge of the cast money burr, need to use the file polished, polished to be sure to bulk operation, so the money to wear together with the file. If the middle is a round hole, it will force to roll, for the edging can only be cast into a square. The general casting is watering method, the technical limitations of the pattern can not be refined