The tank 136 is connected to {TAIL ~ a carrier gas supply source} as {HEAD ~ a carrier gas supply means} via a carrier gas supply pipe 138 
The tank 136 is connected to { TAIL ~ a carrier gas supply source } as { HEAD ~ a carrier gas supply means } via a carrier gas supply pipe 138
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH