{HEAD ~ The spindle speed} is {TAIL ~ a function} of the desired mean thickness of the photoresist, the barometric pressure and the relative humidity 
is
{ HEAD ~ The spindle speed } is { TAIL ~ a function } of the desired mean thickness of the photoresist , the barometric pressure and the relative humidity
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH