Today, almost any production process is divided into several phases and finished in different countries, so the tariff taxation policy includes the ideas of tariffeffective protection theory.
在全球生产阶段多元化的今天，这种关税政策在很大程度上体现了关税有效保护理论的思想。
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They also find that one of the effective methods to solve their business problem is to evaluate and launch some proper tariff packages.