Humans are familiar with arcing, where two poles or points are electrified, carrying an electric current, and suddenly the air between them is filled with a minor lightning bolt - zap.

人类对电弧很熟悉------它是（这样形成的：）两个电极或两个点充上了电，携带着电流；突然，它们之间的空气充满了微小的，快速移动的电光。

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The reinforcing structure is suitable for carrying out reinforcement when the intensity of the holding down bolt of the steel column is not enough.

本发明适用于对钢柱地脚螺栓强度不够时进行加固。

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