powerlinen.输电线(电源线)powern.力量；力；能力；权力；【数】幂；电力v.使有力量；给 ... 提供动力adj.电力的；力量的；权力的power system reform电力体制改革power sector reform电力改革power supply source动力供应源,电源power by-pass jet动力分路喷嘴power transformator电源变压器power communication电力通信power notify object电源提示对象power lines carrier电力载波Power signal source功率信号源power supply device电源