Narrower Terms (14)

• Biotechnology--Pilot plants
• Chemical plants--Pilot plants
• Coal--Carbonization--Pilot plants
• Gas manufacture and works--Pilot plants
• Iron-works--Pilot plants
• Metallurgical plants--Pilot plants
• Mineral industries--Pilot plants
• Petroleum--Refining--Pilot plants
• Saline water conversion plants--Pilot plants
• Sewage disposal plants--Pilot plants
• Solar saline water conversion plants--Pilot plants
• Steel-works--Pilot plants
• Uranium ore processing plants--Pilot plants
• Water treatment plants--Pilot plants