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