In {HEAD ~ an embodiment}, the composite material includes a PLLA fiber material and {TAIL ~ a matrix material} that does not have the same chemical element composition as the fiber material 
In { HEAD ~ an embodiment } , the composite material includes a PLLA fiber material and { TAIL ~ a matrix material } that does not have the same chemical element composition as the fiber material
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH