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Onthebasisofprecedingmainresults,amechanicmodelofoverburden-karsticfreefacewithaweakstructuralplaneispresentedinthispaper.Thecircularelasticsliceofdegassingvalvewassimplifiedasringmechanicsandthemecha...
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Heisanadeptmechanic.He'sneitheranelectriciannoramechanic.Canmymechaniccheckitout?Anexperiencedmechanicisinchargeofthejob."Youhadanear-lifeexperience,"themechanicsays.Hehadajobasamechanicinagarage.H...