( Performance ( ( can ( ( compare ( with ( conventional ( actuator systems ) ) ) ) ( ( using ( expensive ( low-inertia motors ) ) ) ( at ( ( much lower ) ( system cost ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Performance)) (VP (MD can) (VP (VB compare) (PP (IN with) (NP (JJ conventional) (NN actuator) (NNS systems))) (S (VP (VBG using) (NP (JJ expensive) (JJ low-inertia) (NNS motors)) (PP (IN at) (NP (ADJP (RB much) (JJR lower)) (NN system) (NN cost))))))) (. .)))
Performance can compare with conventional actuator systems using expensive low-inertia motors at much lower system cost.
(ROOT (S (NP (NNS Centrifuges)) (VP (VBP use) (NP (NN inertia)) (S (VP (TO to) (VP (VB perform) (NP (PRP$ their) (NN task)))))) (. .)))