Petroleum Dictionary

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version 3.5:
- NEW LOOK!
- adding more than 130 new terms(for letter S) to the database
- stay tuned for the next update, more terms will be added to the dictionary.

version 3.4:
- adding more than 110 new terms(for letter S) to the database

version 3.3:
- adding 100 new terms(for letter S) to the database

version 3.2:
- adding 125 new terms(for letter S) to the database

version 3.1:
- adding more than 100 new terms(for letter S) to the database