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| English | Chinese |
| audio alarm for slag detection | 测渣音频警报 (器: The BOF operators will observe a sharp change of the tap stream in color on a video monitor and will hear an audio alarm for slag detection when slag is detected at tap. 出钢作业时一旦检测到炉渣，氧气顶吹转炉操作人员即能在视频监控器上观察到出钢钢流颜色发生明显变化，并能听到测渣音频警报。) |
| audio former | 声频变压器 |
| audio-frequency amplifier | 声频放大器 |
| audio-frequency generator | 声频发生器 |
| audio-frequency motor | 声频计 |
| audio-frequency oscillator | 声频振荡器 |
| audio gain | 声频增益 |