With the amount of land under cultivation increasing from generation to generation, now, more than three centuries later, there are more than 60,000 irrigation channels in use, stretching over 40,000 kilometers all told.
隨著一代代農田面積不斷增加，三、四百年來，竟然開鑿了六萬多條引水渠道，總長度有四萬多公里。