Here, {TAIL ~ the stagnation room} is disposed between {HEAD ~ the first bottom} of the first cyclone unit and the second ceiling of the second cyclone unit 
Here , { TAIL ~ the stagnation room } is disposed between { HEAD ~ the first bottom } of the first cyclone unit and the second ceiling of the second cyclone unit
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH