Tractor factory in Shandong, Yanzhou Mining Group Machinery Company,Yanzhou Power Supply Bureau, Yanzhou thermoelectric are its outside Training Base.是什么意思_Tractor factory in Shandong, Yanzhou Mining Group Machinery Company,Yanzhou Power Supply Bureau, Yanzhou thermoelectric are its outside Training Base.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句