geologic section 地质剖面
geologic cross section 地质横剖面
geologic column section 地质柱状剖面图
geologic columnar section 地质柱状剖面图
Identification of condensed section is not only the key to understanding of sequence structure, but also critical to analysis of global relative sea level changes during geologic history.
对凝缩段的识别不仅是认识层序结构的关键，而且对分析地质历史时期全球相对海平面变化至关重要。
Major causes of cracks are contraction deformation in early stage, too complicated and changeable geologic setting, improper section shape of the tunnel, wrong practice of NATM construction, etc.
裂缝产生的原因主要是早期收敛变形，地质条件复杂多变，隧洞断面形状不当，新奥法施工运用欠妥等。
On the basis of analyzing the geometry characteristic of geologic section, the data model of section is built.
在分析地质剖面图的几何特征的基础上，建立了地质剖面图的数据模型。
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