Science from the Southern Song Dynasty entered the mature stage.

理学自南宋开始进入成熟期。

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During the period of Western Zhou Dynasty, the earlier period nation of our country had entered the mature stage.

西周时期，我国早期国家进入了成熟阶段。

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After World War II, the western developed country have entered the Post-industrialization society one after another, the urbanized speed is also become slow, gradually enters the mature stage.

二战以后，西方发达国家相继进入后工业社会，城市化速度也由快转慢，逐渐进入成熟阶段。

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