large-area communicated extraction region
Motion region extraction
Transition region extraction
Coherence region boundary extraction
extraction of minimum irregular closed region
Region Feature Extraction
region of interesting extraction
along coastal region border region
Arid region and semiarid region
Bachu Region of Xin jiang Autonomous Region
Electric power transmission from western region to eastern region
gas conduction from western region to eastern region
infra-black region (blacker than black region)
Extraction and back extraction
extraction and back-extraction
Extraction or Non-Extraction Plan
extraction-anti-extraction
Extraction-Back-Extraction
Oil Extraction Office of No.3 Oil Extraction Factory