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| 普通碳素钢 | |||
| 普碳钢; 普通碳素钢 (【技】亦称普通碳素结构钢。与优质碳素钢相比，对含碳量、性能范围以及磷、硫和其他残余元素含量的限制较宽。我国和某些国家将普通碳素钢分为三类：甲类钢只保证力学性能，不保证化学成分；乙类钢只保证化学成分，不保证力学性能；特类钢既保证化学成分，又保证力学性能。) | |||
| 普通碳钢 | |||
| 碳素钢; 单纯碳素钢 | |||
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| 碳素钢 | |||
| plain carbon steel: 4 phrases in 2 subjects |
| Metallurgy | 3 |
| Technology | 1 |
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