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  • architecture
Describes the flow of people throughout a building.
  • geology
  1. The passing of any liquid or gas from the surface to the end of the drill string and back to the surface in the process of drilling a borehole. Long
  2. The movement of air currents through mine openings. Long
  3. In rotary drilling, the process of pumping mud-laden or other fluid down the drill pipe, through the drilling bit, and upward to the surface through the annulus between the drill-hole walls and the drill pipe.AGI
    Source: Dictionary of Mining, Mineral, and Related Terms

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