常見例句雙語例句A restoring spring is provided to press the plunger toward the armature.一恢複彈簧提供給新聞界走曏電樞柱塞。The plunger moves by movement of the armature to open or close the first orifice.由電樞運動的柱塞移動打開或關閉第一個孔。 返回 plunger armature