( Systems ( ( can ( be ( subjected ( to ( ( long-term conditions ) ( of ( ( ( ( ( cold , ) vacuum ) , ) and ) ( solar heating ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Systems)) (VP (MD can) (VP (VB be) (VP (VBN subjected) (PP (TO to) (NP (NP (JJ long-term) (NNS conditions)) (PP (IN of) (NP (NP (JJ cold)) (, ,) (NP (NN vacuum)) (, ,) (CC and) (NP (JJ solar) (NN heating))))))))) (. .)))
Systems can be subjected to long-term conditions of cold, vacuum, and solar heating.
(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.