0 • A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P • Q • R • S • T • U • V • W • X • Y • Z
1: Active solar heating system 2: Bird abatement 3: Community 4: Soil 5: Weed 6: Range 7: Periplaneta americana 8: Lead 9: Japan 10: Feeder 11: Contamination 12: Process 13: Maximum mid-expiratory flow rate 14: Change 15: Electricity 16: Development 17: Action 18: Function 19: Fishery 20: Atmosphere (As of 05:06)
The shortcut HVAC means Heating, ventilation, and air-conditioning system.
