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gas carbon
| arc welding
| gas carbon | |
| auto. | 炭黑 |
| met. | 气炭; 炭 黑; 碳黑 |
| plast. | 烟黑 |
| arc welding | |
| compr. | 电 焊 |
| hydroel.st. | 电弧焊 |
| met. | 电弧焊接 |
| weld. | 弧焊 |
| |||
| 炭黑 | |||
| 气炭; 炭〔烟，瓦斯〕黑; 碳黑 | |||
| 烟黑〈炭黑的一种〉 | |||
| 气碳 | |||
| gas carbon: 44 phrases in 15 subjects |
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| Technology | 20 |
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