However, {HEAD ~ the strength} of {TAIL ~ the electrode substrate} will be degraded to readily cause damage if the porosity is too high 
of
However , { HEAD ~ the strength } of { TAIL ~ the electrode substrate } will be degraded to readily cause damage if the porosity is too high
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH