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| 硝酸腐蚀试验 (【技】适用于奥氏体不锈钢在65%硝酸溶液中煮沸 48h, 试验5个周期或协议为3个周期，以腐蚀率评定晶界腐蚀倾向); 硝酸试验 | |||
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| 硝酸试验 | |||
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nitric- acid test : 4 phrases in 2 subjects |
| Chemistry | 1 |
| Metallurgy | 3 |
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