中国西南地区乡土杨树基因资源丰富，被认为是青杨组的现代自然分布和演化中心之一。

There are abundant genetic resources of poplars in southwest China, which is believed as a centre of Sect.

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种族间的紧张状态最终演化成了市中心贫困区的暴乱。

Racial tension finally boiled over in the inner city riots.

《牛津词典》

在MEIS内容中过程创建具有很大的迭代性，而且过程将可能从以人为中心演化到部分自动化：演化必须尽可能早的进行。

In the context of MEIS process construction is very iterative, and process will likely evolve from human centric to partly automated: that evolution must be made as easy as possible.

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