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| 71. | Pig iron used as permanent ballast. |
| 压载铁做为永久性压舱物的生铁 |
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| 72. | synthetic pig iron |
| 再制生铁;再制铁 |
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| 73. | Containing or yielding iron. |
| 含铁或产生铁的 |
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| 74. | The iron extracted from the blast furnace is known as pig iron . |
| 从高炉中提炼出的铁叫生铁。 |
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| 75. | 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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| 76. | 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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| 77. | We sailed from Perth with a cargo of raw ion. |
| 我们装着一船生铁从佩思启航。 |
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| 78. | a worker who turns pig iron into wrought iron by puddling. |
| 把生铁搅炼进熟铁的工人。 |
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| 79. | 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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| 80. | Cannon Foundry: Cannons are made here from pig iron and wood. |
| 大炮制造厂：在这里把生铁和木头制成大炮。 |
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