污染丝

结果表明，热电偶保护管密封不严，使用时环境气氛与偶丝直接接触，磷杂质污染偶丝并在偶丝晶界上形成富Pt-P脆性相，造成沿晶脆性断裂，引起热电偶失效。

The results show that the thermocouple wire was contaminated by phosphorus that came from the ambience gas , and Pt-P rich phase appeared at the grain boundary of the thermocouple wire , which caused the brittle fracture along the grain boundary , resulting in the thermocouple failure .

不同中间丝类型细胞系间交叉污染的抗中间丝蛋白免疫荧光检测

Detection of cross-contamination between different-type cell lines by immunofluorescence staining with antibodies against intermediate filament proteins

离线化学清洗可以基本消除膜丝内表面的污染，对于膜丝外表面的污染也具有显著效果。

Off-line chemical cleaning can basically remove the pollution on the inner surface of the membrane , and also effective for removing the pollution on the outer surface of the membrane .