Trace integration value represents relative wave impedance. it reflects the variation of relative interval velocity in a seismic section.

道积分值代表相对波阻抗值，它反映了地震剖面上相对层速度的变化。

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There are four elements for the principle of Instructional Design for an integrated curriculum: knowledge integration, experience integration, value integration, curriculum development integration.

整合课程教学设计的原理有四个方面：知识的整合、经验的整合、价值的整合和课程研制的整合。

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There are four elements for the principle of Instructional Design for an integrated curriculum: knowledge integration, experience integration, value integration, curriculum development integration.

整合课程教学设计的原理有四个方面：知识的整合、经验的整合、价值的整合和课程研制的整合。

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