tablealign="center"trtdalign="center"十七/td/trtrtd竹破须将竹补宜,抱鸡当用卵为之。万般非类徒劳力,争似真铅含圣机。/pre/td/trtrtdalign="center"十八/td/trtrtd末炼还丹莫隐山,山中前后尽非铅。此般至宝家家有,自是时人识不全。/pre/td/tr