A powder gun that has a low voltage single supply to it, and steps up the current to high voltage via a cascade multiplier located in the gun barrel.

对粉末供应一个较低的电压，然后通过放置在喷枪中的叠加增效器逐步增加电流到一个高的电压。

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The movable type printing, the compass (指南针) , gun powder and the paper making are called four great inventions of China.

活字印刷术、指南针、火药和造纸术被称为中国四大发明。

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Desiccant dust particles would with air pollution or gun powder coating.

干燥剂粉尘微粒会随气流污染粉末涂料或喷枪。

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In past centuries, China was very innovative and developments included gun powder and the compass.

FORBES: Characteristics Of The New China

U.S. Rep. Mike McCaul, chairman of the House Homeland Security Committee, said "most likely gun powder" was used in the devices.

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Where media budget and creativity used to be the gun powder of a campaign, now the real fire power comes from creativity itself.

FORBES: To Generate Heat, Advertising Must Light Fires