During {HEAD ~ operation} of {TAIL ~ the device} of FIG 1, a charge of coal 11 to be coked is introduced through filling opening 9 into coking chamber 3, which in this embodiment is designed as a cavity or chamber resonator 
of
During { HEAD ~ operation } of { TAIL ~ the device } of FIG 1 , a charge of coal 11 to be coked is introduced through filling opening 9 into coking chamber 3 , which in this embodiment is designed as a cavity or chamber resonator
OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH