短語詞組短語hot -cathode X-ray tube 熱陰極X射線管;熱陰極field -emission cold-cathode X-ray tube 冷陰極場致發(fā)射X射線管cathode -ray ? tube 陰極射線管industrial cathode -ray tube 工業(yè)用陰極射線管postacceleration cathode -ray tube 后加速陰極射線管 返回 cathode-ray tube