Mechanicalengineeringisadisciplineofengineeringthatappliestheprinciplesofphysicsandmaterialsscienceforanalysis,design,manufacturing,andmaintenanceofmechanicalsystems.Itisthebranchofengineeringthatinvolvestheproductionandusageofheatandmechanicalpowerforthedesign,production,andoperationofmachinesandtools.[1]Itisoneoftheoldestandbroadestengineeringdisciplines.

　　Theengineeringfieldrequiresavastunderstandingofcoreconceptsincludingmechanics,kinematics,thermodynamics,materialsscience,andstructuralanalysis.Mechanicalengineersusethesecoreprinciplesalongwithtoolslikecomputer-aidedengineeringandproductlifecyclemanagementtodesignandanalyzemanufacturingplants,industrialequipmentandmachinery,heatingandcoolingsystems,motorizedvehicles,aircraft,watercraft,robotics,medicaldevicesandmore.

　　这一篇是对机械工程的简单介绍

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