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| 51. | Negative audible feedback: Announcing user failure |
| 负面听觉反馈：宣告用户错误 |
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| 52. | There was an audible stillness. |
| 这时一片寂静。 |
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| 53. | audible signal(l)ing device |
| 音频信号器件;音响信号装置 |
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| 54. | he spoke in an audible whisper. |
| 他以一种听得见的耳语说话。 |
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| 55. | sound audible warning device unnecessarily |
| 无故响号 |
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| 56. | audible and visible annunciation system |
| 发声和可见的通报系统 |
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| 57. | Now the antagonism was audible. |
| 此刻对抗很明显了。 |
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| 58. | audible and visual signal [lift] |
| 视听信号〔升降机〕 |
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| 59. | Time starts: audible or visual signal |
| 开始时间(以声响或视觉讯号标定之) |
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| 60. | Acoustics-Audible emergency evacuation signal |
| GB/T12800-1991声学紧急撤离听觉信号 |
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