XDR-TB2, a subset of MDR-TB of highly drug-resistant strains that have significantly worse outcomes, has now been reported in more than 50 countries.

现在已有50多个国家报告出现广泛耐药结核病[2]。 这是耐多药结核的一个分类，耐药性极高，结果也显著地更严重。

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The major factors of manufacturing TB2 titanium alloy wires are studied. The results indicate that using proper forging and rolling and drawing procedures can obtain wires with satisfactory surface.

对TB2丝材生产的主要工艺参数进行了分析研究，结果表明：采用合理的锻造、轧制和拉拔工艺可以获得表面良好的成品丝材。

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