{HEAD ~ Lithium zirconate}, {TAIL ~ an alkali metal oxide}, and an alkali earth metal oxide is used as an absorbing/separating agent 
{ HEAD ~ Lithium zirconate } , { TAIL ~ an alkali metal oxide } , and an alkali earth metal oxide is used as an absorbing / separating agent
HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH