The successful production of several key components and devices used in space flights,aviation,warships,weapons and electronic and special experiments have filled the country blank,contributing to the building-up of national defense.

• 这些元器件广泛应用于航天、航空、舰船、兵器、电子和特种实验领域填补了国内空白，为国防建设作出了重大贡献。