paving slab - pile ring
- perforated wall
- perforated-casing well
- perforating
- perforation
- perforator
- perform
- performance
- performance analysis
- performance bond
- performance calculation
- performance characteristic
- performance coefficient
- performance criterion
- performance curve
- performance data
- performance degradation
- performance deterioration
- performance deterioration process
- performance diagram
- performance energy ratio
- performance evaluation
- performance factor
- performance failure
- performance goals
- performance index
- performance indicator
- performance of a contract
- performance of inspection
- performance of structures
- performance parameter
- performance parameters
- performance requirements
- performance specification
- performance standards
- performance test
- performance trial
- performance-related data
- performance-test data
- pergelation
- pergelisol