Chances of failure and disaster are ever present in all space navigation.

所有的宇宙航行都始终存在着失败和发生灾难的可能性。

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It is used widely in high-tech fields of high temperature, engine, electron, space navigation, petroleum and chemical industrial etc.

广泛应用于高温、机械、电子、宇航、石油化工等诸多高科技领域。

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Aluminium lithium alloy is lower in density and higher in strength. It is a new kind of weldable structural material for space navigation.

铝锂合金是密度较小、强度较高，且具有可焊接特性的新型先进铝合金宇航结构材料。

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Liu Sixing, who was also known as Steve Liu, worked in L-3 Communications' space and navigation unit in New Jersey from 2009-2010 as a senior engineer.

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In fact, most of the value-added uses for space today (GPS navigation, communications, direct broadcast TV and Radio, weather, photography and mapping) owe little to the Apollo program.

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Although spacecraft instruments are set to return photographs and compositional data, the encounter primarily is a test of Deep Space 1's autonomous navigation system, the last of 12 technologies the mission was designed to pioneer.

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