试验中采用专用的扁式液压千斤顶，并采用试验室足尺模型标定试验，研究了这种方法的可靠性。
The reliability of this technique, which is based on the use of special flat-jacks, has been studied by means of calibration tests carried out in laboratory on large size samples.
试验中采用专用的扁式液压千斤顶，并采用试验室足尺模型标定试验，研究了这种方法的可靠性。
The reliability of this technique, which is based on the use of special flat-jacks, has been studied by means of calibration tests carried out in laboratory on large size samples.
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