theyareonlylimitedintermsofthematerialsusedtomakethem.--makethem后面省略掉什么?
Thisassumptionmissesasignificantdifferencebetweenthetwodisciplines.Fine-artobjectsarenotconstrainedbythelawsofphysicsinthesamewaythatapplied-artobjectsare.Becausetheirprimarypurposeisnotfunctional,theyareonlylimitedintermsofthematerialsusedtomakethem.请认真帮我回答?