( ( The probe ) ( ( ( can then ) ( be ( pushed ( into ( ( the vacuum ) ( ( ( sealing system ) and ) ( ( valving system ) ( ( ( with ( ( automatic stops ) ( at ( the ( load position ) ) ) ) ) and ) ( at ( the ( two ( vacuum seals ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN probe)) (VP (MD can) (RB then) (VP (VB be) (VP (VBN pushed) (PP (IN into) (NP (NP (DT the) (NN vacuum)) (VP (VP (VBG sealing) (NP (NN system))) (CC and) (VP (VBG valving) (NP (NN system)) (PP (PP (IN with) (NP (NP (JJ automatic) (NNS stops)) (PP (IN at) (NP (DT the) (NN load) (NN position))))) (CC and) (PP (IN at) (NP (DT the) (CD two) (NN vacuum) (NNS seals))))))))))) (. .)))
The probe can then be pushed into the vacuum sealing system and valving system with automatic stops at the load position and at the two vacuum seals.
(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.