香山红叶的历史悠久，早在金代就有诗句赞赏香山的红叶。

The red leaves of Fragrant Hill have a very long history. Early in the Jin Dynasty there were poems in praise of them.

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秋天来了，树叶开始改变了它们的颜色，欣赏漫山红叶的时候也不远了吧？

Autumn arrives. Leaves begin to change their colours. The best time to enjoy watching the red leaves all over the hills is coming soon, isn't it?

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明确不同棉花品种早衰发生情况及红叶的发生原因，为生产上棉花品种的合理布局提供依据。

To ascertain the causes of premature senescence and red leaf occurrence in different cotton varieties, and provide basis for reasonable disposal of varieties for cotton production.

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