The system is comprised of a diversity antenna (105) and a main antenna (100).

该系统由分集天线(105)和主天线(100)组成。

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"Hardware optimization," optimization of the main antenna and equipment, including troubleshooting and so on.

硬件优化“主要包括天线优化和设备排障等工作。”

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The method how to get the main antenna coordinate by using the known base station coordinate is introduced, too.

从课题实际情况出发，详细介绍了如何利用已知基准站坐标得到主天线坐标的方法步骤。

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Galileo's main antenna, folded up like a giant umbrella, failed to open properly after launch.

ECONOMIST: The long arm of the celestial repairman

The main antenna failed to open properly, but clever reprogramming enabled the capacity of the low gain antenna to be increased eight times, enabling 70% of the mission objectives to be completed.

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Eventually, the Galileo team gave up on the main antenna and reprogrammed the craft to use its smaller secondary dish, which transmits data at a hundredth of the speed of the main one.

ECONOMIST: The long arm of the celestial repairman