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| non-steady soil; unstable soil | |||
| detrimental soil | |||
| detrimental soil (层); unstable soil (层) | |||
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不稳定土 : 7 phrases in 5 subjects |
| Arabic language | 1 |
| Drilling | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Technology | 3 |
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