Ben shu fen xi le dong bei lao gong ye ji di zi yuan xing cheng shi fa zhan jie xu chan ye de bi yao xing,Chen dian cheng ben chan sheng de yuan yin ji ru he xiao chu chen dian cheng ben dui dong bei lao gong ye ji di zi yuan xing cheng shi fa zhan jie xu chan ye de fu mian ying xiang deng wen ti,Jin er yan jiu chan ye jin ru he tui chu de yi ban yu te shu gui lv,Tan tao zi yuan kai fa bu chang he chen xian qu yuan zhu de li lun gen ju he shi shi ji zhi,Fa zhan shuai tui qu yu he chan ye zhen xing de lu jing yu mo shi.