A preferentialmodel based on the expression to better support preferential strategies, especially segmental linear strategies.
设计出了基于表达式的优惠模型，加强对优惠策略的支持，尤其是分段式线性优惠。
2
Meanwhile, the two countries have differences in taxation structure, preferential taxation policy to foreign investment and levying model, and each has its own characteristics.
同时两国在税制结构、吸引外资税收优惠政策、征管模式等方面存在一些差异，各自也有自身的特色。
3
Based on that, the preferential flow model was modified.