铱卫星通常轨道较低，其运动较快。
Iridium satellites are unusual because their orbit is so low and they move so fast.
在某些情况下，我们必须用铱卫星电话交流。
On some occasions, we would have to use Iridium satellite phones for communication.
依此思路推测，它有点像“铱闪光”，它是由太阳光反射到铱卫星上所产生。
In this way it would act like an 'iridium flare.' The flares are created by sunlight reflecting off iridium satellites.
两卫星都是用于电信，美国卫星还是铱网络66颗卫星的一部分，用于提供世界超过250,000人的卫星电话服务。
Both satellites were used for telecommunications, with the us satellite an active part of Iridium's network of 66 craft which provide satellite telephone access to more than 250, 000 people worldwide.
这起事故是关于美国铱公司12年前发射的一颗卫星，以及俄罗斯1993年发射的已经失效的宇宙卫星。
The incident is thought to have involved a 12-year-old satellite belonging to the US company Iridium and a defunct Russian Cosmos satellite that was put into orbit in 1993.
铱：如果铱听起来让你觉得熟悉，那可能是因为很多通讯卫星都是以这种硬而脆的大密度金属元素命名的，也可能是因为恐龙在白垩纪末从地球灭绝，与铱有关的缘故。
Iridium (Ir): If iridium sounds familiar, that might be because there’s a group of communications satellites named after this element, a hard, brittle and dense metal.
本文介绍全球移动卫星通信系统的现状、种类及其将来的发展趋势。对“铱”星系统也作了介绍。
This paper introduces the present and future of Global mobile Satellite communication system. IRIDIUM system is also introduced.
两卫星都是用于电信，美国卫星还是铱网络66颗卫星的一部分，用于提供世界超过250,000人的卫星电话服务。
Both satellites were used for telecommunications, with the us satellite an active part of Iridium's network of 66 craft which provide satellite telephone access to more than 250,000 people worldwide.
铱公司还说，它期望在30天之内用八颗在轨备用卫星中的一颗来替代失去的卫星。
Iridium also said it expected to replace the lost satellite with one of its eight in-orbit spares within 30 days.
铱网络使用66低轨卫星在极地轨道485公里以上的海平面。
The Iridium network uses 66 low earth orbit satellites in polar orbits 485 miles above sea level.
这两颗卫星是1997年发射的一颗铱商业卫星和1993年发射的一颗被认为是失去功能的俄罗斯卫星。
The two satellites were an Iridium commercial satellite launched in1997, and a Russian satellite launched in 1993, which was believed tobe nonfunctioning.
这两颗卫星是1997年发射的一颗铱商业卫星和1993年发射的一颗被认为是失去功能的俄罗斯卫星。
The two satellites were an Iridium commercial satellite launched in1997, and a Russian satellite launched in 1993, which was believed tobe nonfunctioning.
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