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| 履带式挖土机 | |||
| 履带式挖掘机 | |||
| 履带挖土机; 履带式挖土机 | |||
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| 履带挖掘机 | |||
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| 履带挖掘机 | |||
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caterpillar excavator : 6 phrases in 4 subjects |
| Bridge construction | 1 |
| Construction | 1 |
| Hydroelectric power stations | 2 |
| Technology | 2 |
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