The system margin price is the unite price which reflects the short-term supply-demand relation of power commodity.
系统边际电价是电力市场中反映电力商品短期供求关系的统一价格。
参考来源 - 独立发电厂基于电价预测的竞价策略研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The supply and demand relation runs through the whole level of supply chain.
供需关系贯穿供应链的整个过程。
Supply-demand relation and price changes directly influence breeding area and variety distribution.
供求关系和价格变动直接影响制种面积、品种的分布；
The changes of supply-demand relation has put immense pressure on labor market and brought about a series of changes.
劳动市场供求关系的变化带来了巨大的市场就业压力。
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