When {HEAD ~ the mixing ratio} of and in {TAIL ~ the range} from 5:95 to 95:5, remarkable effect can be obtained 
in
When { HEAD ~ the mixing ratio } of and in { TAIL ~ the range } from 5:95 to 95:5 , remarkable effect can be obtained
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH