According to the shifted distance and the phase increment, the mapping relationship between phase difference and depth of object can be determined by a least squares method.

该技术通过平移实物参考面，测得其上位相分布，利用其位移距离与位相增量之间的关系，以最小二乘方法计算位相差与物面深度之间的映射关系。

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With the increment of the mining depth in metal mines, the underground high-temperature heat-harm becomes more and more serious, and the main cause is the underground heat sources.

随着金属矿山开采深度的增加，矿井高温热害问题越来越严重，其主要原因是井下热源。

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Large scale numeric calculation shows that the active limiting displacement is increasing with the depth of retained soil, and that the increment is zero when the soil depth reach some degree.

大量数值计算表明：主动极限位移随土层深度增加而增加，但到一定深度后其增量为零。

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