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classification system
| for
| soil
| classification system | |
| anim.husb. | 外貌评级制 |
| econ. | 分类体系; 分类法 |
| geogr. | 分类系统 |
| for | |
| gen. | 合; 为; 替; 给; 因为 |
| soil | |
| environ. | 土壤 |
| |||
| 外貌评级制如在奶牛评级中，根据各品种标准，划分为下列等级:poor(P)：不及格,65分以下;fair (F)：及格,65〜74 分;good(G)：好,75〜 79 分；good plus (G +)佳，80~84 分； very good | |||
| 分类体系; 分类法 | |||
| 分类系统 | |||
| 分类制度 | |||
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classification system for soil : 137 phrases in 39 subjects |
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