All processing, fabrication, assembly, treatment, and packaging of products must be contained indoors entirely within a research and development facility. Noise, odor, smoke, heat, glare, and vibration resulting from the manufacturing process must be confined to a research and development facility or otherwise minimized. Only minimal truck traffic required for the daily operations of a research and development facility is permitted. In the C-2 zoning district a minimum parcel size of at least 1 acre is required.