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。

Before the electrical current puts into operation in a spark plug, the two points of contact have to be gapped.

youdao

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。

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.

youdao