This paper presents a new criterion to ground distance relay. The ground distance relay takes three-input comparators.

本文提出了一种分相式接地距离继电器新判据，并进行了理论分析。

youdao

One of the critical problems that need to be solved by a ground distance relay is to improve the capacity of the earth-fault resistance endurance of the relay.

接地距离继电器要解决的关键问题之一是提高其耐受过渡电阻的能力。

youdao

From a distance, it really looks and sounds like a little animal running along the ground trying to get away.

所以从远处看，它看起来和听起来都像是一只小动物在地上奔跑以试图逃走。

youdao

The frame rate is 15 fps and the "ground sample distance" is 15 centimeters -- each pixel represents about six inches.

ENGADGET: Darpa develops a 1.8 gigapixel digicam and no, you can't 'check it out'

The South Wales Evening Post reported the next day that around 30 Cardiff supporters were chased into the sea, a short distance from the ground.

BBC: Supporters can be the winners

Indeed, it is the ground campaign that establishes the distance.

BBC: Observatory detects record burst