The contrast of the output femtosecond pulse reduced and the length of the pre-pulse enlarged as the degree of the saturated amplification severed.
随着系统进入增益饱和区，压缩光脉冲的对比度明显降低，预脉冲长度显著增大。
2
In contrast, another 7 fragments, which appeared only in the amplification of total DNA and never in that of cytoplasmic DNA, were thought amplified from nuclear DNA.