Antennas of various apertures and bands are already in mass production and have been put into use in microwave relay communication systems.

批量生产的不同口径及频段的这类天线已用于微波通信系统中。

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The relay team, nicknamed Weapons of Mass Destruction before the Olympics, came in fourth in the event, in which they had been expected to deliver a medal.

BBC: Australian Olympic swimmers admit using sedative