For example, at interval [0.9, 1.0), those added TM phrase-pairs significantly improve the SMT system from 63.65 to 73.55, and Model-III from 80.69 to 86.40.
if Model-III + is compared with Model-III, the improvements from merging the TM phrase-pairs get less when the fuzzy match score decreases, because the matched TM parts are fewer at low fuzzy match intervals.