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| 土壤保持局美 | |||
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| 土壤保持局美国 | |||
| 土壤保持局 | |||
| 美国水土保持服务组织 (隶属于美国农业部); 土壤保持局 (美国农业部) | |||
| 美国土壤保护局 | |||
| English thesaurus | |||
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| SCS (now NRCS) | |||
| SCS | |||
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soil conservation service : 3 phrases in 3 subjects |
| Earth sciences | 1 |
| Ecology | 1 |
| Technology | 1 |
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