短语词组短语deflector r coil 偏转线圈deflector coil plate 偏转线圈板line coloring deflector coil 行偏转线圈deflector coil coupling 偏转线圈耦合deflector coil current 偏转线圈电流line deflector coil 行偏转线圈vertical deflector coil 垂直偏转线圈 返回 deflector coil