About Liu Jincheng
About 訥河市農業机械化服務中心,黒竜江訥河,161300
About Heilongjiang Kexue
About science and technology
About agriculture
About automation
About automatic control
About 高信頼性
About 高効率
About 農業生産
About Agriculture in general
About Agricultural machines and facilities in general
About Agricultural economy,agricultural management
About 農業
About 自動化
About 応用