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- Dewey Decimal Classification (DDC) (1)
- 600 Technology (Applied sciences) (1)
- 621 Applied physics (1)
- 621.2 Hydraulic-power technology (1)
- 621.204 Special topics of hydraulic-power technology (1)
- 621.204 2 Specific liquids (1)
- 621.204 22 Water (1)
- 621.204 2 Specific liquids (1)
- 621.204 Special topics of hydraulic-power technology (1)
- 621.2 Hydraulic-power technology (1)
- 621 Applied physics (1)
- 600 Technology (Applied sciences) (1)
Number of items at this level: 0.