supplydemand of road and traffic 道路交通供需
supplydemand cooperative innovation mechanism 供需合作机制
The underground gas storage can adjust the balance between the supplement and consumption, harmonize the variation of supplydemand relationship, store the strategic reserve and so on.
前言： 地下储气库用于随时调节供应量和消费量间的平衡、协调供求关系的变化和战略储备等。
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