The liquid level of the bioreactor 17 can be monitored by a liquid level indicator 18 which is in {HEAD ~ fluid communication} with {TAIL ~ the bioreactor} 17 
with
The liquid level of the bioreactor 17 can be monitored by a liquid level indicator 18 which is in { HEAD ~ fluid communication } with { TAIL ~ the bioreactor } 17
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH