因此，出口退税政策表现为阶段性政策，需要不断的随着经济环境的变化而调整。

So, the export tax rebate policy is shown as the phased policy, need constant adjustment with change of the economic environment.

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在这一议案中工作的，公共利益科学研究中心的营养政策总监Margo Wootan称：这一信息将是“行动起来”项目的一个阶段性的胜利。

Margo Wootan, director of nutrition policy at the Center for Science in the Public Interest, worked on the bill, and said that it's passage was a victory for Let's Move! Program.

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西汉时期的工商管理政策具有鲜明的阶段性。

The distinct phases featured the management policy of Industry and Commerce.

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