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| 梨臭皮病梨枝枯病，梨腐烂病，Valea ambiens Pr.; 梨树枝枯病梨树腐烂病，梨树臭皮病，Valsa ambiens Fr. | |||
| pear canker: 9 phrases in 2 subjects |
| Biology | 5 |
| Pest control | 4 |
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