[Refrigeration technic for skating rings].
D003365:Costs and Cost Analysis; D005160:Facility Design and Construction; D007053:Ice; D010806:Physical Education and Training; D012034:Refrigeration / Q000295:instrumentation*; D012621:Seasons; D013177:Sports; D013696:Temperature
D007053:Ice
Kältetechnik für Kunsteisbahnen.