The inexperienced pilot flew the plane badly; it was off the beam most of the time.

那位没有经验的飞行员驾驶技术很差，飞机大部分时间都偏离了无线电讯号指示的航道。

youdao

The carpenter singing his, as he measures his plank or beam, The mason singing his, as he makes ready for work, or leaves off work;

VOA: special.2009.04.12

After flipping off the beam, the judges gave her a score that put her in fourth place.

WSJ: Social Media

While the driving lights are the first use of a laser beam reflected off a mirror, the daytime running lamps, with their characteristic "torch" effect, and the indicator lights use LEDs.

ENGADGET: Mercedes-Benz GLA concept puts laser projectors in headlights, redefines SUV

The beam reflects off any objects, including people, within the area.

BBC: fire fighting