( ( ( High ( Temperature Superconductors ) ) ( -LRB- ( HTS -RRB- ) ) ) ( ( ( ( are able ) , ) ( when ( ( cooled , ) ( to ( ( convey ( electrical current ) ) ( without ( loss ( of energy ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP High) (NNP Temperature) (NNP Superconductors)) (PRN (-LRB- -LRB-) (NP (NNP HTS)) (-RRB- -RRB-))) (VP (VBP are) (ADJP (JJ able)) (, ,) (SBAR (WHADVP (WRB when)) (S (VP (VBD cooled) (, ,) (S (VP (TO to) (VP (VB convey) (NP (JJ electrical) (NN current)) (PP (IN without) (NP (NP (NN loss)) (PP (IN of) (NP (NN energy)))))))))))) (. .)))
High Temperature Superconductors (HTS) are able, when cooled, to convey electrical current without loss of energy.
(ROOT (S (NP (PRP You)) (VP (VBP call) (S (NP (NNS materials)) (ADJP (JJ able) (S (VP (TO to) (VP (VB conduct) (NP (NN electricity)) (PP (IN with) (NP (ADJP (CD 100) (NN %)) (NN efficiency))) (, ,) (S (VP (VBG meaning) (SBAR (IN that) (S (NP (DT no) (NN energy)) (VP (VBZ is) (VP (VBN lost) (PP (IN during) (NP (NP (DT the) (JJ electrical) (NN transmission)) (, ,) (NP (NNS superconductors)))))))))))))))) (. .)))
You call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission, superconductors.