In the same time, problems needed to resolve, as well as research hotspots, in automatical lifting technology of shearer drum are aslo ana...是什么意思_In the same time, problems needed to resolve, as well as research hotspots, in automatical lifting technology of shearer drum are aslo ana...在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句