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为开发我国黄金资源,满足乡镇企业、集体和个人的致富需要,我厂科技人员研制成功TJJ-1小型自动淘金机.
In order to develop our country’s gold resources and meet the needs of township enterprises, collectives and individuals to get rich, our plant technicians have successfully developed the TJJ-1 small automatic gold panning machine.