Navigation unit is the guarantee that Airdrop system can deliver supplies to the designed place accurately and implement landing safely.

导航单元是空投系统能够精确的将物资投送到指定地点，并安全实施雀降的重要保证。

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I'd recommend the turn-by-turn navigation apps for those who don't want to buy a GPS navigation unit or Sprint users who qualify for the free app.

那些不想买GPS导航系统的人，和能享用免费软件的Sprint用户，我建议他们使用逐向道路导航软件。

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Using hybrid GPS-aided navigation, the unit can support search and rescue (SAR) operations.

采用混合GPS辅助航行，该设备能够支持搜索和救援(SAR)操作。

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It is, as its name implies, an augmented reality navigation unit that shows you where to go using a front-facing camera and a variety of systems.

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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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Each onboard ADS-B set consists of a Global Positioning System satellite navigation unit, two Pentium microprocessors, some software and a radio transmitter-receiver--not much more gear than you would find behind the dash of a new Cadillac.

FORBES: Free flight