middle area in Yellow River
the middle area of south slope of Qinling Mountain
warm and cool half moist district of middle area i
Sichuan and Yunnan area
copper-molybdenum-gold mineralization area
EPITHERMAL MINERALIZATION AREA
gold and polymetallic minerals mineralization area
Zhangcaigou mineralization area
Zhishan gold mineralization area
area, area side trapezoid
wetted surface area [= area of wetted surface]