In order to reduce costs and decrease attrition of steering gear is required as straight line navigation and playing fewer rudders.

同时当船舶在营运过程，为了降低成本、减少舵机磨损，需尽可能的直线航行、少打舵。

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With the widespread use of map websites and on-line navigation systems, the need for multi-user concurrent queries for travel information is ever-increasing.

随着地图网站和在线导航系统的普及，多用户网络并发出行信息查询服务的需求日益增长。

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Gerardus Mercator's projection, published in 1569, was immediately useful because it depicts a line of constant bearing as a straight line, which is handy for Marine navigation.

福西厄斯•墨卡托的投影于1569年问世，马上就派上了用场，因为它把不变的方位描绘为直线，这对航海非常方便。

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Garmin sells portable outdoor navigation and mapping devices, including the eTrex line of GPS receivers.

FORBES: Magazine Article

As with all the OE Styled radios in the Advent line, this infotainment solution, lets the new car buyer upgrade to a high-quality multimedia and navigation system, without having to purchase other packages or trim levels.

ENGADGET: Advent intros the OTOCAM3 multimedia navigation system for Toyota Camry

The remaining 15% of first-half sales came from the aviation segment, which offers a comprehensive line of panel-mounted and portable products, including completely integrated systems that deliver flight instrumentation, location, navigation, communication and identification data.

FORBES: Garmin: Navigating Its Way To Holiday Profits