High-level state-made eye hunt production of neutrinosThe country's first 20-inch new pv multiplication line is activatedOn 25 november, the co-operative group for the development of large-area photo-ray multipliers, led by the institute of high energy physics of the chinese academy of sciences, announced that the country's first production line, 20-inch micro-channel-based photo-multipliers, produced 7,500 items per year, had been completed. Ove