Based on node isolation principle, it adopts pre emphasize technique to equilibrate the EDFA output power of all signal channels.
它以节点孤立原则为基础，采用预均衡技术对经edfa放大后的所有光信道功率均衡。
The differences between China and the west in terms of family are that Chinese emphasize filial piety while westerners stress love. This theory confuses the pre-modernity with modernity.
中西齐家之道的不同表现为施爱与还报的区别，但是此说没有注意到历史语境的不同，将前现代与现代混为一谈。
《Book of Changes》and the great thinkers of the pre-Qin period emphasize the ancient and contemporary significances.
《周易》及先秦时代的重要思想家都注重古义和今义。
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