短語(yǔ)詞組短語(yǔ)ball mill tube 球磨機(jī)筒躰compartment tube ball mill 多倉(cāng)琯式球磨機(jī)tube ball mill 筒形球磨機(jī);鋼球磨煤機(jī)double ended tube ball mill 雙進(jìn)雙出磨 返回 ball tube mill