mountain brown forest soil
Daxing’an Mountain and Xiaoxing’an Mountain
poverty mountain area of Qinling mountain
Tianshan Mountain Tarim Kunlun Mountain
Shantung brown soil (Non-calcic brown soil)
boundary line of two times between earth excavation area and earth fill area
Earth Day [first Earth Day in 1970]
a cubic mountain climbing searching method
Abutment mountain body water seepage
acute mountain sickness
Agricultural Comprehensive Development in Mountain Areas
Agricultural Ge mountain lead-zinc