地下水资源储量对某一地区是一定的，亦是有限的。
The reserves of underground water resources are certain and limited at some area.
原材料供应及成本：秭归境内硅石资源储量极大，质地优良。
The raw material supply: Zigui has a large reserve of Silicon which has good quality.
低品位石油储量也是我国重要的石油资源。
Poor quality oil reserves(PQOR)is still an important resource.
低品位石油储量也是我国重要的石油资源。
Poor quality oil reserves(PQOR)is still an important resource.
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