The degradation controlling agent may be of the same type as the degradation controlling agents described above and may be dispersed in the matrix material or coated on {HEAD ~ a surface} of {TAIL ~ the fiber material} 
of
The degradation controlling agent may be of the same type as the degradation controlling agents described above and may be dispersed in the matrix material or coated on { HEAD ~ a surface } of { TAIL ~ the fiber material }
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 OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL