This thesis proposes an ontology - initiated scenario - specific query expansion system to solve these problems.

我们提出了基于本体论之场景式的查询扩充系统来改善这些问题.

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This paper introduces the structure, working tenet and applied technology of pipe string expansion system.

本文介绍了管柱伸缩器的结构 、 工作原理、应用工艺及其在吐哈油田现场试验情况.

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