根据用户的运行中的部署环境的需求和限制，将推荐使用不同的迁移方法。

Different migration methods are recommended according to requirements or constraints that customers may have on their running deployment environments.

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生产国官方机构出具的自由销售证明，应体现产品的名称、生产厂家的名称和具体地址，并证明该产品在本国生产、销售和使用不受任何限制。

Certificate of sales, which declare the product name, the name and detail address of manufacturer, and prove there is no any limitation to manufacture, sale and use of the products.

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对公务员权力的限制，可以防止行政权力使用不当或滥用，损害人民的利益。

Restricting the servants' administrative power can prevent its abuse or improper use, which leads to infringe upon the interests of the people.

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