( ( In ( scientific work ) ) ( , ( it ( ( is ( common ( to ( use ( the ( Kelvin ( temperature scale ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (JJ scientific) (NN work))) (, ,) (NP (PRP it)) (VP (VBZ is) (ADJP (JJ common) (S (VP (TO to) (VP (VB use) (NP (DT the) (NNP Kelvin) (NN temperature) (NN scale))))))) (. .)))
In scientific work, it is common to use the Kelvin      temperature scale.
(ROOT (S (NP (DT The) (JJ kelvin) (NN scale) (NN temperature) (NN scale)) (VP (VBZ is) (ADVP (RB commonly)) (VP (VBN used) (PP (IN in) (NP (NN science))))) (. .)))