{HEAD ~ A shutter driving actuator} for driving {TAIL ~ a shutter} from the closed position to the opened position when in operation is connected to the shutter 
for driving
{ HEAD ~ A shutter driving actuator } for driving { TAIL ~ a shutter } from the closed position to the opened position when in operation is connected to the shutter
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH