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31. | flax cultivation |
| 亚麻栽培 |
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32. | early maturity culture |
| 早期栽培 |
|
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33. | sugar beet growing |
| 甜菜栽培 |
|
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34. | cultivated botany |
| 栽培植物学 |
|
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35. | mixed cultivation |
| 混合栽培 |
|
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36. | field production |
| 大田栽培 |
|
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37. | homogeneous culture |
| 均匀栽培 |
|
|
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38. | accelerating culture |
| 催熟栽培 |
|
|
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39. | forcing culture |
| 促成栽培 |
|
|
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40. | cultivated variety |
| 栽培变种 |
|
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