乙炔生产的剩余20%主要用于氧乙炔切割、热处理和焊接。
The remaining 20%of the acetylene production is principally used for oxyacetylene cutting, heat treating, and welding.
当采用氧乙炔焰或等离子切割时，切割后必须除去影响焊接质量的表面层。
If oxyacetylene flame or plasma is adopted, surface coat that can impact welding quality shall be removed after cutting.
[nf - 7]一般，非铁基材料不可能采用常用于切割钢材的传统氧乙炔设备进行切割。
In general, nonferrous materials cannot be cut by the conventional oxyacetylene cutting equipment commonly used for steel.
焊接与切割1949年，北京已有气焊、电弧焊及氧乙炔火焰切割等手工作业。
Welding and cutting in 1949, Beijing has geo-drilling, electric welding and cutting etc oxyacetylene flame manual operation.
焊接与切割1949年，北京已有气焊、电弧焊及氧乙炔火焰切割等手工作业。
Welding and cutting in 1949, Beijing has geo-drilling, electric welding and cutting etc oxyacetylene flame manual operation.
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