365003
Subjects covered are cell design , electrochemical reaction engineering , corrosion , hydrometallurgy , the electrochemical treatment of effluents , molten salt and solid state electrochemistry , solar cells , new battery systems , and surface finishing .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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