electrotomen.电刀(自动切断器)electropref.电的；电子的；电解的=electr-.electrostatic hertz wave静电电磁波electrostatic type meter静电系仪表electrolytic dissolution电解溶解electrolytic anodization电解阳极氧化electro-encephalographn.脑电图仪electroengraving machine电动刻花机electro-optic constant电光常数electromagnetic constant电磁常数,光速electroorganic chemistry有机电化学electro - fusion joint电熔接头