Nomenclature Secondary Object Term
Engine, SteamNomenclature Secondary Object Term
Boiler, SteamNomenclature Primary Object Term
ModelNomenclature Primary Object Term
EngineNomenclature Primary Object Term
Boiler, HVACNomenclature Sub-Class
Other DocumentsNomenclature Sub-Class
Power Producing EquipmentNomenclature Sub-Class
Environmental Control ElementsNomenclature Class
Documentary ObjectsNomenclature Class
Energy Production T&ENomenclature Class
Building ComponentsNomenclature Category
Category 08: Communication ObjectsNomenclature Category
Category 05: Tools & Equipment for Science & TechnologyNomenclature Category
Category 01: Built Environment Objects