commonweal gcological survey team
deep-water channel in the north channel
disease of one channel involving another channel
Cross-section Survey and Profiles Survey
absorber *A support project of the Heilongjiang Provincial Foundation of Natural Science
central Heilongjiang Province
Duobaoshan in Heilongjiang
East Harbin of Heilongjiang Province
eastern basins of Heilongjiang
Eastern Heilongjiang Province
Eastern mountain area of Heilongjiang province
Eastern mountain areas of Heilongjiang Province
eastern part of Heilongjiang Province
Forest regions in Heilongjiang
Heihe area in Heilongjiang Province