碳化铌的数量与铌的加入量有关。

The amount of NbC depends on the adding amount of Nb.

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通过对蓝宝石的钨金属化，实现了蓝宝石与铌合金的高温封接。

Sapphire and Nb alloy have been successfully brazed by use of tungsten-metallization technique.

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研究了用酸浸与钠碱熔融法从钨渣中富集和回收钽铌。

The enrichment and recovery of tantalum and niobium through acid leaching and sodium alkali fusing from tungsten residue is studied.

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