短語詞組短語blowing -down 休風(fēng)emergency blowing -down 緊急休風(fēng)blowing down burden material 休風(fēng)料down blowing gas 下吹制氣steam -blowing by step-down pressure 降壓吹管up -down blowing sand cs 上下刮砂杯 返回 blowing down