The permeable forming screen onto which {HEAD ~ a fibrous aqueous slurry} is deposited is of a different structure in areas corresponding to the discrete areas of the mat so as to restrict the flow of water through {TAIL ~ those areas} 
The permeable forming screen onto which { HEAD ~ a fibrous aqueous slurry } is deposited is of a different structure in areas corresponding to the discrete areas of the mat so as to restrict the flow of water through { TAIL ~ those areas }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL