Transition probabilities have been estimated, and based on the estimations, a comparative analysis of industrial structure transition is made among the periods.

文中完成了产业结构转移概率的估计，并且根据估计结果，对我国不同时期产业结构的转移运动进行了比较分析。

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Through the discussion on public blood donation, we can not only understand the changes of social mobilization, but also take a comparative view on social transition.

公益献血进步的探讨，不仅能反观社会动员的变迁，而且管窥了社会动员变迁背后的社会转型。

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