短語詞組短語coal wheel -feeder 葉輪給煤機(jī)coal -feeder speed 給粉機(jī)轉(zhuǎn)速coal single -direction feeder 單曏給煤機(jī)coal double -direction feeder 雙曏給煤機(jī)buried scraper coal -feeder 埋置刮板給煤機(jī)coal portal -frame impeller feeder 門式葉輪給煤機(jī)the concentric multi -ring coal feeder 環(huán)式給煤機(jī) 返回 coal feeder