即使是基模，也存在着截止条件。

There is a cut-off condition even for the fundamental.

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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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方法确定适应证、比色、预备基牙、取模、戴牙。

Methods To confirm indication, compare color, prepare abutment teeth, impression taking, fix teeth.

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方法确定适应证、比色、预备基牙、取模、戴牙。

Methods To confirm indication, compare color, prepare abutment teeth, impression taking, fix teeth.

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