大家在查：盖森伯格 WUE A19 Schistosomiasis Japonicum remebered a natural 切除脾脏 MAGE-3 二月廿七日暫

burn cultivation

burn cultivation

burn cultivation

burn cultivation

1

Tibet spent only more than 30 years to turn its agriculture from the primitive stage of slash-and-burn cultivation to modern production .

西藏农业从 “刀耕火种 ”的原始状态初步走向现代生产，只用了 30多年的时间。

2

Their habits of hunting, fishing, and slash-and-burn cultivation often have been harmful to the habitat .

他们渔猎和刀耕火种的习性通常会破坏他们的生存环境。

3

In here , from the slash -and-burn cultivation to the high tech agriculture , obtains the demonstration .

在这里，从刀耕火种到高科技农业，都得到展示。

5

The ecology culture of Yunnan minority nationalities'slash and burn cultivation

云南少数民族刀耕火种农业中的生态文化

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