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| 61. | The freighter carrying pig iron is cleaving through the water. |
| 装着生铁的货船正在破浪前进。 |
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| 62. | It is very brittle and difficult to work . |
| 生铁很脆，很难加工。 |
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| 63. | 1.a change; a shift; conversion; mutation; transition 2.to change (into); to switch; to mutate3.to take a turn; to turn around |
| 转变 |
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| 64. | pig iron containing a substantial proportion of slag. |
| 含有大量矿渣的生铁。 |
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| 65. | Pig iron used for spherical graphite cast iron |
| GB/T1412-1985球墨铸铁用生铁 |
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| 66. | Pig iron for steel making |
| GB/T717-1998炼钢用生铁 |
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| 67. | Then, what is pig iron ? |
| 那么，什么是生铁呢? |
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| 68. | Pig iron may contain 4% of carbon. |
| 生铁约含有4%的碳。 |
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| 69. | Foundry pig iron |
| GB/T718-1982铸造用生铁 |
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| 70. | pig iron made entirely from ore. |
| 完全由矿石提炼的生铁。 |
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