Written-down (net) value of a fixed asset
Mechanical Erosion Control
Mechanical Treatment Technology
Securities other than shares
Air Filter
Air Pollution Sources
Centrifugal Collector
Skimming
Soil Injection
Strip Mining
Comminution
Coolant
Disinfestation
Scum Collector
Shredding
Advanced Treatment Technology (waste water)
Biological Treatment Technology
Capital stock - net
Net capital stock
Net value of a fixed asset
Air Curtain
Coastal Protection
Composting
Dredging
Oil Spill
Protection against Erosion
Stream Bank Erosion
Water Treatment
