Our marriages system can't be carried outwell because of the long – term defect of invalid marriages system.

无效婚姻制度的长期缺失使我国的结婚制度得不到很好的贯彻。

Smelting,cast-on outwell and heat treatment handicraft,may accomplish with the type product or material in reference in creating process.

熔炼、铸造和热处理工艺,可作为同类型产品或材料在制造过程中的参考。