铁路电焊“花木兰”
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温素霞的防毒口罩里用活性炭防护。焊接完一个门后，新的口罩过滤网上有了一层黑印。她说：“口罩必须勤换，保证作业安全。”
Wen Suxia displays the mask-type respirator used to prevent inhalation of poison gas. The active carbon in the respirator absorbs poisonous gases and impurities, leaving a layer of dirt on the filter of the mask. "The filter must be replaced frequently to ensure safe welding operation," she said. [Photo by Chen Weisong/China.org.cn]
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