There might be no radar coverage.

可能没有雷达覆盖。

youdao

You are out of Radar coverage.

你在雷达有效范围之外。

youdao

This often means flying in remote areas with no radar coverage.

这些用途意味着它们将飞行在没有雷达覆盖的边远地区。

youdao

The AEGIS BMSP holds great promise for expanding missile defense radar coverage at a fraction of the cost of other approaches.

CENTERFORSECURITYPOLICY: Go Navy missile defense!

When advanced radar and drone coverage is not available, warfighters typically rely on their own vision to scan their surroundings.

ENGADGET: DARPA threat detection technology uses a camera to see targets, software and soldier brains to identify them

Pro gaming still has managed to fly under the radar as far as mainstream coverage.

FORBES: Blizzard Establishes First Ever Global StarCraft II ESports Ranking System