If stiffer fibers are to be contained in the nonwoven, which can be displaced at least not permanently into the marginal areas of the respective holes by the water needling on a perforated drum, these fibers, {HEAD ~ namely only the ones} that are stretched across {TAIL ~ the holes}, are subjected briefly to melting 
are stretched across
If stiffer fibers are to be contained in the nonwoven , which can be displaced at least not permanently into the marginal areas of the respective holes by the water needling on a perforated drum , these fibers , { HEAD ~ namely only the ones } that are stretched across { TAIL ~ the holes } , are subjected briefly to melting
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