track beacon造句

• Once the flight system detects the beacon from the ground system, it tracks beacon with the gimbal.
• At this time, the railway had been only partly doubled-tracked, and still made use of the old single-track Beacon Hill Tunnel.
• The navigation system can use fixed track beacons or differential GPS stations combined with wheel rotation to accurately determine the train's location on the line within a few feet.
• They receive their braking program and station stop positions orders ( one-third, two-thirds, or end of station ) from track beacons prior to entering the station, with additional beacons in the station for ensuring stop precision.