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double oxyacetylene welding goggles 双玻璃氧乙炔焊工护目镜
single oxyacetylene welding goggles 单玻璃焊工护目镜
Repair of the oxyacetylene welding of the crank anxle 曲轴的氧乙炔焰喷焊修复
oxyacetylene welding surfacing 氧-乙炔火焰堆焊
oxyacetylene weld 氧炔焊,气焊
Some metals weld better than others. 有些金属容易焊，有的不容易焊。
oxyacetylene welding 氧炔焊,氧乙炔焊
oxyacetylene welding equipment 气焊设备
oxyacetylene welding outfit 氧乙炔气焊机
On reaching welding heat, the metal surfaces are pressed together. 当金属表面达到焊接热度时就会压在一起。
Some of the students are welding capacitor; the others resistor. 学生中的一些人在焊接电容，另一些人在焊接电阻。
The preferred method is by oxyacetylene flame. 最好采用氧炔焰加热方法。
Some of the students are welding capacitors; the others resistors. 学生中的一些人在焊接电容，另一些人在焊接电阻。
It takes speed and skill to weld steel at this heat. 在这样的温度焊钢需要速度和技术。
It take speed and skill to weld steel at this heat. 在这样的温度焊钢需要速度和技术。
It takes speed to weld steel at this heat. 在这样的高温下熔接钢铁需要快速。
The remaining 20%of the acetylene production is principally used for oxyacetylene cutting, heat treating, and welding. 乙炔生产的剩余20%25主要用于氧乙炔切割、热处理和焊接。
They weld the pieces of a broken axle. 他们焊接断了的车轴。
Cutting: Oxyacetylene cut off the castings from gate stick. 用氧气-乙炔焰从浇棒上切下铸件。
He is welding the pieces of a broken axle. 他正在焊接断了的车轴。