second round of 3D seismic survey
second round of oil and gas exploration of China
The Second Round of Finding Deposits
Change survey of land use situation
Change Survey of Land Using
China Institute of Land Survey and Planning
Insitiute of Land Survey and planning of Heilongjiang Province
national survey of land use
parcel of land of ownership
Shanghai Institute of Land Survey and Planning
survey of land and resources
Survey of land use changes in cities and towns
Survey of land use trend
Zhejiang Institute of Land Survey and Planning
Department of Survey Land information
a coupled systems of second order differential equation
Abbe principle of second image formation