{HEAD ~ an electrolyte solution} containing water, {TAIL ~ the electrolyte solution} being added into said container to be mixed with said electrolyte; and 
containing
{ HEAD ~ an electrolyte solution } containing water , { TAIL ~ the electrolyte solution } being added into said container to be mixed with said electrolyte ; and
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH