- Hesnaggedaroastedonion,drippingbrownwithgravy,fromanearbytrencherandbitintoit.Itcrunched.Inpipelineconstruction,traditionalexplosivetrenchingmethodhasbeenappliedinstoneworksection.Caterpillarrocktrencherwillplayanimportantroleinpracticalpipelinelayin...
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