Inside the converter oxygen is blow on to the surface of the charge through a water-cool pipe, call a lance.

通过一根叫作氧枪的水冷管子将氧气吹入炉内的原料表面。

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Inside the converter oxygen is blow on to the surface of the charge through a water-cool pipe, call a lance.

通过一根叫作氧枪的水冷管子将氧气吹入炉内的原料表面。

youdao