英语语法分析

Such important concepts as hierarchy of additionality were put forward.

提出了额外性的层次等重要概念。

However, additionality remains a challenge due to its inherent subjective nature.

然而，由于其固有的主观性质，额外性仍然是一个挑战。

The demonstration method and mathematical model for the additionality of our national wind power generation farm was promoted.

论文研究提出了我国风力发电场的额外性论证方法与模型。