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用“haulage roadway”造句大全,haulage roadway造句
2018-10-10
Theapplicationofboltingspoutingsupportin7244haulageroadwayofnorthNo4miningareaTheapplicationofthegeologyminingconditionandthegob-sideentrysupporttechnologyinhaulageroadwayNo.451faceareintroduced....
用“roadway”造句大全,roadway造句
2017-03-08
ItwillalsoallowtheroadwaythatrunsontopoftheHooverDamtoclose.Inancienttimes,akinghadaboulderplacedonaroadway.Atollcouldbeplacedonaroadway,raisediftrafficbogsdown,andreducedifthere'ssparecapacity.Batte...
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