structure of tariff造句

Frankly speaking , our power market is not a really competitive market . in our country , power tariff is surely decided by state administrative department rather than by the relationship between supply and demand . our government ratifies the structure of tariff as well as the level of the price
我国目前的电力市场并不是一个真正的竞争市场，电价是由国家价格管理部门核定的，而不是由市场供求关系决定的，政府不仅核定价格构成，而且核定价格水平。
It's difficult to find structure of tariff in a sentence. 用structure of tariff造句挺难的