Sentence:  In addition to the method described in the section above , chlorine and radiochlorine were <WSD>prepared</WSD> by the electrolysis of a * * f eutectic on the vacuum line , and by exchange of * * f with molten * * f . 
Meaning of the word marked with <WSD> tags:  make ready or suitable or equip in advance for a particular purpose or for some use, event, etc