The test records the electrical activity of the brain.

这个测试显示出大脑的电流活动。

《柯林斯英汉双解大词典》

Some, like carpenter ants, can undermine a home structure, while others interfere with the electrical units.

一些蚂蚁，比如木蚁，会破坏房屋结构，而另一些蚂蚁则会干扰电器装置。

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They used the electrical power in the lunar module to add electricity to the batteries of the command module.

VOA: special.2009.07.22

If I can run the gel for some period of time, run the electrical field, spread it out.

我将凝胶通电一段时间后,在电场作用下,就会分散开来

耶鲁公开课 - 生物医学工程探索课程节选

I don't know if you know how a spark plug works, but for the electrical current to fly into operation in a spark plug, the two points of contact have to be gapped.

我不知道你们是否知道,火花塞是怎样工作的，在电流通入火花塞中使它运转之前，两个接触点之间需要有空隙。

耶鲁公开课 - 文学理论导论课程节选

This time, he topped the electrical- and mechanical-engineering category and won fifteen thousand dollars.

NEWYORKER: Machine Politics

After college, she became an estimator at the electrical-contracting firm where her father worked.

WSJ: War Tragedies Strike Families Twice

You may have noticed as you walked around that the electrical connections haven't been made.

NPR: New Homes for a City's Musical Heart and Soul