石英晶体谐振器是一种提供基准时基的器件。
Quartz crystal resonators are devices that supply standard time base.
最后，本文又对一种低折射率芯光子晶体光纤基模束缚损耗特性进行了分析。
Lastly, the fundamental mode loss of a special kind of depressed-index core PCF is analyzed.
最后，本文又对一种低折射率芯光子晶体光纤基模束缚损耗特性进行了分析。
Lastly, the fundamental mode loss of a special kind of depressed-index core PCF is analyzed.
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