一些在PLA服役中的Z-9B中移除后排座位去容纳辅助设备用于通信中继、炮兵指示和电子对抗角色。
Some Z-9Bs in the PLA service have the back-row seats removed to accommodate additional equipment for communications relay, artillery direct, and electronic countermeasures roles.
该课题研究如何将不同种类的超短波通信设备用一个通用平台连接起来，实现互连互通。
The subject researches for how to connect different kind of ultra wave communication devices using a universal platform to realize connection and communication.
利用该种材料制成了介质滤波器及分米波通信设备用的小型、轻量的片式元器件。
This kind of material is used to make dielectric filters and miniature, light and chip components for communication equipments in decimeter-wave region.
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