( ( Mechanical engineers ) ( ( use ( thermo-science ( to ( ( ( ( ( design ( engines ( and ( power plants ) ) ) ) , ) ( heating ( , ( ventilation ( , ( and air-conditioning ) ) ) ) ) ) ( -LRB- ( HVAC -RRB- ) ) ) ( ( ( ( ( ( ( ( ( ( ( ( ( systems , ) ( heat exchangers ) ) , ) ( heat sinks ) ) , ) radiators ) , ) refrigeration ) , ) insulation ) , ) and ) others ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Mechanical) (NNS engineers)) (VP (VBP use) (ADJP (JJ thermo-science) (PP (TO to) (NP (NP (NN design) (NNS engines) (CC and) (NN power) (NNS plants)) (, ,) (NP (NN heating) (, ,) (NN ventilation) (, ,) (CC and) (NN air-conditioning)) (PRN (-LRB- -LRB-) (NP (NNP HVAC)) (-RRB- -RRB-)) (NP (NP (NNS systems)) (, ,) (NP (NN heat) (NNS exchangers)) (, ,) (NP (NN heat) (NNS sinks)) (, ,) (NP (NNS radiators)) (, ,) (NP (NN refrigeration)) (, ,) (NP (NN insulation)) (, ,) (CC and) (NP (NNS others))))))) (. .)))
Mechanical engineers use thermo-science to design engines and power plants, heating, ventilation, and air-conditioning (HVAC) systems, heat exchangers, heat sinks, radiators, refrigeration, insulation, and others.
(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.