关于abutments的百科

• abutments造句怎么写

• piersandabutmentsofrailwaybridgeStonebridgesconsistofpillars,abutmentsandarchesmadeupofstonesheldtogetherbymortar.Analysisofandcounter-measuresforverticalcrackscommonlyseeninpiersandabutments;Foundationsarebasesplacedonthegroundsoastospreadaverticall...
• 2017-11-236851