Materials with light amplification is a main part of fiber amplifier, which determine the power efficiency of fiber amplifier.
光放大材料是光纤放大器的主要组成部分，它决定光纤放大器的光放大功率。
Materials with light amplification is a main part of light amplifier, which determine the power efficiency and flat gain bandwidth of light amplifier.
光放大材料是光放大器的重要组成部分，它决定光放大器的光放大功率及平坦增益带宽。
In this part I selectively excerpted major events of Rujing from historical materials and analyzed the main features of Zen school in Song Dynasty.
在这里选择性地摘录了史料中关于如净的主要事件，并分析了如净所处的宋代的禅宗主要特点。
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