Circum - economy proposes circum - production and economical consumption, which is the key to the construction a resources - economical society.
In Circum - Bohai - Sea region, administrative agreements are the new instruments to promote cooperation and settle disputations.
Circum - Pohai belt had happened red seedling disease of rice large acreage in 2005.
The volcanic basins were developed under the setting of regional strike - slip and circum - Pacific magma arc.
The formation of nappe is related to the tectonic movement of circum - Pacific continental active belt.