desert steppe and half desert steppe  荒漠、半荒漠草原

semi-desert and desert grassland  荒漠半荒漠草地

acdic volcanic rocks  酸性火山岩

acid volcanic glass  酸性火山玻璃

ACID VOLCANIC ROCKS  酸性火山岩

alkalic volcanic rock  碱性火山岩

alkaline volcanic rock  氯前列烯醇; 碱性火山岩

Alpine-Himalayan volcanic belt  阿尔卑斯喜马拉雅火山带

altered volcanic rock  蚀变火山岩

altered volcanic rocks  蚀变火山岩; 风化火山岩

ancient volcanic edifice  古火山机构

Ancient volcanic vents of the Emeishan flood basal  峨眉山玄武岩古火山口

Ancient volcanic vents of the Emeishan flood basalts  峨眉山玄武岩古火山口

AND VOLCANIC ROCK  火山岩

association of volcanic rocks  火山岩组合

associations of volcanic structures and their mutual relation  火山构造组合相互关系

Baojia volcanic basin  鲍家火山盆地

basalt volcanic breccia  玄武质火山渣

Basic volcanic rock  基性火山岩