This method has been validated by field observation . 3.

经现场观测验证是合理的.

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The current primary research methods are theoretical research, experiment in laboratory, field observation and numerical simulation.

目前主要的研究方法是理论研究 、 实验室实验 、 现场观测和数值模拟.

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This paper selects Qingtuxian loess highway tunnel as relying engineering and takes field observation synthetically.

本文选取青土岘黄土公路隧道为依托工程,开展了大规模的现场测试.

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