moving-coil英'muːvɪŋk'ɔɪl美'muːvɪŋk'ɔɪlCOCA²²⁹³⁸⁹BNC¹⁰⁴⁵⁸⁴⁺⁶ 基本例句 n.移动式线圈¹⁰⁰ Under the action of variation magnetic field, the permanent magnet moving-coil drives the plunger pump to move up and down and lift oil up to ground. 通过动力电缆给井下直线电机供电后产生交变磁场，永磁体动子在交变磁场作用下带动泵柱塞上下往复运动，从而达到举升抽油的目的。 com