{TAIL ~ The removable substrate holder} is engaged with {HEAD ~ the substrate boat} such that substrates thereon are interleaving with the susceptors 
{ TAIL ~ The removable substrate holder } is engaged with { HEAD ~ the substrate boat } such that substrates thereon are interleaving with the susceptors
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH