id	keyword
american_scientific_journal-1550	polyester
american_scientific_journal-1550	clay
american_scientific_journal-1550	steel
american_scientific_journal-1550	corrosion
american_scientific_journal-1550	carbon
american_scientific_journal-1550	specimens
american_scientific_journal-1550	journal
american_scientific_journal-1550	technology
american_scientific_journal-1550	oil
american_scientific_journal-1550	figure
american_scientific_journal-1550	engineering
american_scientific_journal-1550	polarization