A great attention has been paid to slowing the degradation of coal nowadays. The spiral bunker is the main measure to lo......

圆柱螺旋斜槽式煤仓，综合了圆形立仓和倾斜煤仓的优点，能大大提高块煤率。...

圆柱螺旋斜槽式煤仓,综合了圆柱立仓和倾斜煤仓的优点,能大大提高块煤率....