cord - cros
- cord
- cord well pump
- core
- core analysis, chromathermographic
- core barrel
- core barrel, inner, removable (retrievable); retrievable (removable) core receiver
- core barrel, inner; inner barrel; core receiver
- core basket
- core bit
- core bit (cutting) blade
- core bit; core bit size diameter
- core breaker
- core catcher
- core cutter
- core diameter
- core drill
- core drilling coring
- core extractor; core press
- core flow efficiency
- core interpreting device
