relationship between supply and demand

• 供需关系

relationship between supply and demand的用法和样例：

例句

1. By controlling the supply of land to control supply and demand relations, thereby indirectly control the market price.
   通过控制土地供应达到调控供需关系，从而间接地调控着市场价格。
2. Relationship between water supply and consumption of main planting tree species of protection forests in loess area of western Shanxi Province.
   黄土区防护林主要造林树种水分供需关系研究。