transitional era meaning in English

过渡时代

Urban development and local authorities entreprenurialism in transitional era of china
转型期的中国城市发展与地方政府企业化
A tentative research on the legislation for education reform in the transitional era of the late qing dynasty
晚清社会转型中的教育改革立法刍议
This paper goes into detail on the migration selectivity of chinese migration in the transitional era of late 1990s , using the 2000 chinese population census micro data
文章利用2000年中国人口普查微观数据，重点考察了1990年代后期在转型社会中中国人口迁移的选择性问题。