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水下氧弧切割技术是一种方法简单，应用广泛的技术。
Under-water oxygen-arc cutting technology is easy for operation and widely used.
youdao
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有时氮气还被用作氧等离子弧切割时的起弧气体。
Sometimes nitrogen are being used oxygen plasma arc cutting of arcs gas.
youdao
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有时氮气还被用作氧等离子弧切割时的起弧气体。
Sometimes nitrogen are being used oxygen plasma arc cutting of arcs gas.
youdao