本文主要讨论穹窿-火山型攀西裂谷的成因，岩浆深成作用与火山作用过程；
Panxi Rift with the dome-shaped volcano pattern has undergone three evolutionary processes: the lithosphere dome by mantle bulge, the continental crust dome and the subvolcano-dome.
钻孔灌注桩是工程中常用的深基础形式，其成桩质量对工程安全有着至关重要的作用。
The cast-in-place pile is in general engineering deep foundation forms, pile quality plays a vital role to construction safety.
关于煤的变质因素，文中否定了那种把该煤田煤变质因素单纯归结了深成变质作用的观点。
The opinion is denied of the metamorphic factor only relying on to regional metamorphism in the paper.
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