For example, you might notice that a radio tower is in line with the buoy you're aiming for, and you can use that tower as a reference point during the race.

比如：你也许注意到岸上的无线电发射塔和你的比赛目标在一条直线上，那么比赛中你就可以用这个发射塔作为参照。

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This article introduced two type of VE buoy of America to us for reference.

本文介绍了美国两种VE浮标的现状，以供借鉴。

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Underwater GPS positioning system includes four parts which are GPS differential reference station, GPS buoy subsystem, underwater pinger, ship-based data processing and control center.

差分gps水下立体定位系统包括GPS差分基准站、GPS浮标、水下收发机、船基控制中心四部分。

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