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APPARATUS FOR MEASURING DISPLACEMENT OF EARTH LAYERS IN WELL
APPARATUS FOR MEASURING DISPLACEMENT OF EARTH LAYERS IN WELL
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机译:用于测量井中土层位移的装置
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摘要
device for.measuring the displacement of the soil in a borehole, comprising the внедрени element connected with the flexible element and the measuring приспос нат жной обление, отличающеес whatin or
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