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METHOD OF CHANGING LARGE-DIAMETER PIPELINE WITHOUT TRENCHING
METHOD OF CHANGING LARGE-DIAMETER PIPELINE WITHOUT TRENCHING
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机译:无需开槽即可更改大直径管道的方法
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摘要
FIELD: construction.;SUBSTANCE: method comprises changing the sections of pipeline by periodic pulling through the new pipeline to the place of the pipeline to be removed. The pipeline to be removed is cut from inside by means of a ring cut, cut longitudinally, and dismounted.;EFFECT: enhanced safety.;1 cl, 2 dwg
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