Beijing Central Engineering and Research Research Institute of Non -ferrous Metallurgical Industry
scientific research research results
Accounting Research achievements distribution Research personnel
Exploration Research Department of CNOOC Research Center
operations research [= operational research]
China Offshore Oil Research Center Bohai Research Institute
Ⅰ-type optional increasing paths
Additional for Optional Destination
baskeball optional course
bead seat optional contours
bilateral optional forward contracts
contextually optional element
contextually optional token
dual mode time-optional control system
Dual optional and predictable projections
engineering optimizational method
essential optional service