It suggests that bronze mask originated from the north in the Stone Age, its usage has relation with sorcery and buried masks represent the identity and status of dead.

• 认为青铜面具起源于石器时代，青铜面具的源地在北方，青铜面具的使用与巫术有关，墓葬中的青铜面具反映了死者的身份等级。