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Terms for subject Engineering geology containing extra-heavy | all forms | exact matches only | in specified order only
| English | Chinese |
| extra heavy drive pipe | 超重冲击管 |
| extra-heavy drill rod | 超重钻杆 |
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| English | Chinese |
| extra heavy drive pipe | 超重冲击管 |
| extra-heavy drill rod | 超重钻杆 |