大面积平行板雪崩计数器
large area parallel plate avalanche counter
平行板雪崩计数器
parallel plate avalanche counter
PPAC
parallel-plate avalanche counter
标准平板计数法
standard plate count method
等温竖直平行平板
isothermic vertical parallel plates
isothermal vertical parallel plates
平行平板
Parallel plates
parallel plate
Nearly parallel optical elements