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.

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他说，几乎任何类型的火花，从你接触球形门把时所产生的静态冲击，直至照亮木星上狂暴气的庞大闪电，都可以认为是一种闪电。

Pretty much any spark, from the static shock you get from touching a doorknob to the giant bolts that light up Jupiter's turbulent atmosphere, could be considered lightning, he said.

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奥尔德林当时使用的是毡制粗头笔，它的尖头是不导电的，接触开关不会造成短路或引发火花。

Aldrin relied on a felt-tip marker, since the non-conductive tip would close the contact without shorting it out, or causing a spark.

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