By the gaussian approximation and local mode-coupled theory, fused splice loss of step and parabolic index single mode elliptic core fibers have been analyzed, calculated and discussed.
采用高斯近似和局域模式耦合理论，对阶跃折射率分布和抛物线折射率分布椭圆芯单模光纤熔接接头损耗进行了分析、计算和讨论。
Method Porcelain-fused prosthesis with the casting core of Ti or Au alloy.
方法经钛合金或金合金铸造核烤瓷冠修复。
The method comprises steps that a fused salt electrolysis process is used for removing the sulfur in the copper sulfide core by using the copper sulfide ore as cathode and fused salt as electrolyte.
该方法包括：以铜硫矿为阴极、熔盐为电解质，采用熔盐电解法对铜硫矿进行脱硫的步骤。
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