128公里岩体
INTRUSION AT THE 128 KM SIGN
Ⅰ、Ⅱ号镁铁-超镁铁岩体
andⅡmafic-ultramafic complex
GSI岩体分类法
GSI rock mass classification
坝基岩体分级
grading of dam foundation rock mass
dam foundation rock classification
坝基岩体质量
quality of dam foundation
坝肩岩体
rock mass of dam abutment
坝区软弱岩体
soft rock mass in dam zone