When a bioreactor is to be inoculated, the contents of {HEAD ~ the bag} are drained via {TAIL ~ a sterile weldable inoculation line} 
When a bioreactor is to be inoculated , the contents of { HEAD ~ the bag } are drained via { TAIL ~ a sterile weldable inoculation line }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL