( However ( , ( ( insulation ( and ( heating systems ) ) ) ( ( can ( be created ) ) . ) ) ) )
(ROOT (S (ADVP (RB However)) (, ,) (NP (NN insulation) (CC and) (NN heating) (NNS systems)) (VP (MD can) (VP (VB be) (VP (VBN created)))) (. .)))
However, insulation and heating systems can be created.
(ROOT (S (NP (DT A) (JJ sealed) (, ,) (JJ vacuum-insulated) (NN reaction) (NN flask)) (VP (VBZ approximates) (NP (NP (DT the) (NN condition)) (PP (IN of) (NP (NP (DT a) (VBN isolated) (NN system)) (, ,) (SBAR (WHPP (IN in) (WHNP (WDT which))) (S (NP (CC neither) (NP (NN matter)) (CC nor) (NP (NN heat))) (VP (MD can) (VP (VB be) (VP (VBN exchanged) (PP (IN between) (NP (NN system) (CC and) (NNS surroundings)))))))))))) (. .)))
A sealed, vacuum-insulated reaction flask approximates the condition of a isolated system, in which neither matter nor heat can be exchanged between system and surroundings.