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| 41. | Pig iron-Sampling for chemical analysis |
| GB/T719-1984生铁化学分析用试样制取方法 |
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| 42. | Then, what is pig iron ? |
| 那么，什么是生铁呢? |
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| 43. | Pig iron for steel making |
| GB/T717-1998炼钢用生铁 |
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| 44. | Gunsmithy: This building makes muskets from pig iron. |
| 军械车间：在这里用生铁制成步枪 |
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| 45. | pig iron made entirely from ore. |
| 完全由矿石提炼的生铁。 |
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| 46. | Pig iron may contain 4% of carbon. |
| 生铁约含有4%的碳。 |
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| 47. | pig iron containing a substantial proportion of slag. |
| 含有大量矿渣的生铁。 |
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| 48. | Pig iron used as permanent ballast. |
| 压载铁做为永久性压舱物的生铁 |
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| 49. | Pig iron used for spherical graphite cast iron |
| GB/T1412-1985球墨铸铁用生铁 |
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| 50. | Blacksmithy: Pig iron is made into cultasses here. |
| 铁匠房：在这里用生铁制成弯刀。 |
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