Thereinto, the coal mill equipment for power station is the dominant production of our company, including HP type middle speed coal mill, BBD type low speed tube ball mill and 9224 type gravimetric coal feeder with electronic weighing.是什么意思_Thereinto, the coal mill equipment for power station is the dominant production of our company, including HP type middle speed coal mill, BBD type low speed tube ball mill and 9224 type gravimetric coal feeder with electronic weighing.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句