又可用作地-空雷达的地面询问机询问信号编码器。
It also can be used as the signal encoder of interrogator of the surface-to-air SSR.
本论文以常规模式和模式S询问信号的理论为背景，重点阐述了测试仪的设计方案及实现。
The thesis is based on the interrogating theory of the normal mode and mode S and focuses on the design and implementation of the tester.
我们注意到紧急无线电示位标信号消失了，并联系到塞舌尔有关方面，询问他们是否注意到······他们注意到了，并已在空中和海上展开搜索。
We were aware that the EPIRB had gone off, talked to the Seychelles, asked if they were aware of it... they were, and have been searching by air and sea.
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