国际电信联盟保留了1400 - 1427 MHz范围内的特殊无线电频段，亦称L -频段，特别供地球探测卫星和太空天文使用。
The International Telecommunications Union reserves a special radio band in the 1400-1427 MHz range, called the L-band, especially for Earth-observing satellites and space astronomy.
到那时，联盟号是宇航员离开国际太空站的唯一方法。
At the moment, the Soyuz is the only way to get astronauts to and from the station.
当前停驻在国际太空站的两艘联盟号宇航飞船将把六名宇航员带回地球。
Two Soyuz spacecraft are currently docked to the station to take its six astronauts home.
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