A. equipment system parts: split keyboard control, simple, convenient, easy to learn the split keyboard operation, users can quickly and flexibly grasp the use of equipment, more independent.
Therefore, it has practical significance to develop TETRA digital trunked system equipment which has independent intellectual property rights.
因此，开发具有自主知识产权的TETRA数字集群系统设备具有实际意义。
3
Localization services all types of antenna system with independent intellectual property rights of domestic equipment, all manufacturing, installation testing are localized.