电力: [电学] power; electric power◇电力变阻器 power rheostat; 电力捕鱼 electrofishing; 电力潮流 direction of energy; 电力传动 electric drive [transmission]; power drive [transmission]; 电力传动系统 power transmission sy
关: Ⅰ动词1.(使开着的物体合拢) close; shut 短语和例子关窗户 shut the window; 他随手轻轻地把门关上了。 he closed the door softly behind him.2.(圈起来) shut in; lock up 短语和例子把鸡关在栅栏里 shut the chickens in a pen; 关进监狱 lock up (in p