区域评价 meaning in Chinese

area assessment
regional estimation
regional evaluation

Classification and regional evaluation of collapsed loess in gansu
甘肃省湿陷性黄土的分类与区域评价
Those enterprises that enter the above mentioned blocks for petroleum prospecting ( at the stage of regional assessment and prospecting stage ) before chinese - foreign cooperative blocks are publicized shall retreat from such blocks after chinese petroleum companies have concluded contracts with foreign enterprises
对外合作区块公布前，已进入该区块进行石油勘查（尚处于区域评价勘查阶段）的企业，在中方石油公司与外国企业签订合同后，应当撤出。