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Hierarchy
Groups
Alphabetical
oils
>
heavy oils
PREFERRED TERM
heavy oils
TYPE
http://www.irandoc.ac.ir/onto/irandoc-meta/Concept
BROADER CONCEPT
oils
RELATED CONCEPTS
fuel oils
lubricants
petroleum
IN OTHER LANGUAGES
روغنهای سنگین
Persian
URI
http://www.irandoc.acir/onto/irandoc/NEMA0001690
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