{HEAD ~ An arrangement} for {TAIL ~ the remote actuation} of a controlled device, e.g. a hydraulic valve, in situations with stringent safety requirements, uses optical power 
{ HEAD ~ An arrangement } for { TAIL ~ the remote actuation } of a controlled device , e.g. a hydraulic valve , in situations with stringent safety requirements , uses optical power
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL 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