WHAT DOES YB:GLASS & ER MEAN?

铒玻璃与钴尖晶石键合晶体中的铒离子提供红外波段的高效激光发射，而钴尖晶石作为调 Q 材料，能产生高功率脉冲输出" Having said that some reviewers felt the episodes subsequent the pilot did not Dwell around it with Mink commenting that "...The nice promise of the "E.R." pilot dissolves into the sort of