| Label | Dataset | Type | Subdivision | Identifier | |
|---|---|---|---|---|---|
| 1. | Air ducts |
LC Subject Headings (LCSH) |
Topic SimpleType Authority |
sh85002629 | |
| Air conditioning--Ducts ; Air pipes ; Ducts, Air ; Hot-air heating--Ducts ; Pipes, Air ; Ventilation--Ducts | |||||
| 2. | Hydronics |
LC Subject Headings (LCSH) |
Topic SimpleType Authority |
sh96002725 | |
| Cooling and heating with water ; Heating, piping, and air conditioning ; Heating, plumbing, and air conditioning ; Heating and cooling with liquids ; Hydronic systems | |||||
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