![hopper dredger造句怎么写]( "hopper dredger造句怎么写")
- Basedonthesequentialquadraticprogrammingmethod,athrustallocationforthetrailingsuctionhopperdredgerwaspresented.Thepaperintendstoprovethattheintactstabilityofahopperdredgerinpartloadconditionisbetterthanthatinfullloadcondition.Improvingtheworkingchara...
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![hopper car造句怎么写]( "hopper car造句怎么写")
- Thefreightcarwastankcarsandthehoppercarsthatpiledupcokes.SomekeytechnicalpointsindesignofthelockingmechanismonhoppercarsatpresentinChinaareanalyzedanddiscussed....
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中文谷
