我是大四学生,翻译文章,在下面一段话中有这个东西,不知是何物
By increasing the crystal thickness, the absorption efficiency and, therefore,
the slope efficiency increases while the number of laser ions,
which have to be pumped to transparency, also goes up and
therefore the laser threshold increases.作者: 郁闷 时间: 2008-3-9 09:38
我个人认为可能说的是被激发原子