{HEAD ~ Containers} 58 and 59 of silicon and {TAIL ~ oxygen} , respectively, are coupled to tube 37 via pipe 40 under the control of flow controllers 61 and 62, respectively 
of
{ HEAD ~ Containers } 58 and 59 of silicon and { TAIL ~ oxygen } , respectively , are coupled to tube 37 via pipe 40 under the control of flow controllers 61 and 62 , respectively
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL OTH OTH 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