When the Rotary Cutting Drum for mining Cobalt-rich Crust is working on the fluctuant Microtopography,how to control the cutting depth and the cutting pose is a very crucial problem.是什么意思_When the Rotary Cutting Drum for mining Cobalt-rich Crust is working on the fluctuant Microtopography,how to control the cutting depth and the cutting pose is a very crucial problem.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句