On demand of produce-prepare in the Zibo Mine Group Xuchang Mine and Daizhuang Mine,the head,drive,floating vehicle and tail of DSJ800 extensible belt conveyor are optimizing designed.是什么意思_On demand of produce-prepare in the Zibo Mine Group Xuchang Mine and Daizhuang Mine,the head,drive,floating vehicle and tail of DSJ800 extensible belt conveyor are optimizing designed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句