{HEAD ~ The reaction temperature} usually ranges between {TAIL ~ 0° C.} and 50° C. and the reaction time usually ranges between 15 min and 24 h 
usually ranges between
{ HEAD ~ The reaction temperature } usually ranges between { TAIL ~ 0 ° C. } and 50 ° C. and the reaction time usually ranges between 15 min and 24 h
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH