The system performance testing shows that the more stable characteristic of dual-laser controlled erbium-doped fiber amplifier is an obvious advantage over the single-laser controlling.
系统性能测试表明：双激光控制掺饵光纤放大器在稳定性方面比单激光有着明显的优势。
System performance testing, inspection & repair for air breathing apparatus and EEBD.
呼吸器、紧急逃生呼吸器性能试验、检修、检验；
System performance testing, inspection & repair for air breathing apparatus and EEBD.
呼吸器、紧急逃生呼吸器性能试验、检修、检验；
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