An introduction is given to key construction flow, quality detection and quality control of bracket method for large span prestressed cantilever box beam cast in place.

结合工程实例，介绍大跨度预应力现浇箱梁托架法施工的关键工序、质量检测及控制。

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In this paper, firstly, an introduction to quality engineering techniques is given, then current situation and general trend in research on statistical process control techniques presented.

本文首先介绍了质量工程技术的主要内容。在此基础上，概述了统计过程控制技术的研究现状及其发展趋势。

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The paper presents an elementary introduction to the quality control process and point of installation of sand compaction piles in water.

简要介绍了水上挤密砂桩的施工质量控制流程和要点。

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