目的研究石家庄市正常牙合汉族人硬组织颅面结构特征。
Objective to study the dentofacial hard tissues features of people with normal occlusion of Shijiazhuang.
介绍了建设天然气地下储库的地质基础，阐述了建库的岩体其主要结构面分布及地应力分布特征。
Introduces geological formation for building nature gas storage. Sets forth the rock body for storage building, its major structural face distribution and ground stress distribution behavior.
岩体伴随地质构造运动产生了特征不同的结构面。
The geological formation movement produced many structural planes with different characteristic.
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