( ( Both results ) ( ( are ( achieved ( through ( ( precise use ) ( of ( ( ( ( ( ( ( leverage , ) inertia ) , ) gravity ) , ) and ) ( ( the action ) ( of ( centrifugal ( and ( centripetal forces ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT Both) (NNS results)) (VP (VBP are) (VP (VBN achieved) (PP (IN through) (NP (NP (JJ precise) (NN use)) (PP (IN of) (NP (NP (NN leverage)) (, ,) (NP (NN inertia)) (, ,) (NP (NN gravity)) (, ,) (CC and) (NP (NP (DT the) (NN action)) (PP (IN of) (NP (JJ centrifugal) (CC and) (JJ centripetal) (NNS forces)))))))))) (. .)))
Both results are achieved through precise use of leverage, inertia, gravity, and the action of centrifugal and centripetal forces.
(ROOT (S (NP (NNS Centrifuges)) (VP (VBP use) (NP (NN inertia)) (S (VP (TO to) (VP (VB perform) (NP (PRP$ their) (NN task)))))) (. .)))