接收器和放大器接收来自副反射器的无线电波，并使这些微弱的无线电波强大到足以被记录下来并转化成电子信号。
A receiver and amplifier receive the radio waves from the sub reflector, and make these weak radio waves strong enough to be recorded and turned into electronic signals.
针对双频副反射器的结构特点和技术要求，研究了混杂纤维复合材料的性能和成型工艺。
According to structural features and technical requirements of the dual-frequency subreflector, the performance and shaping process technology of hybrid fibre composite are studied.
针对双频副反射器的结构特点和技术要求，研究了混杂纤维复合材料的性能和成型工艺。
According to structural features and technical requirements of the dual-frequency subreflector, the performance and shaping process technology of hybrid fibre composite are studied.
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