complex surface and subsurface geologic condition
subsurface geologic survey
generalized geologic map
interpretive geologic map
reconnaissance geologic map
subsurface controlled subsurface safety valve
anomaly of subsurface fluid
Artificial enamel subsurface lesion
combined control of salinization and subsurface wa
combined control of salinization and subsurface waterlogging
combined controlling of surface and subsurface water logging