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| 61. | acoustic diagnosis |
| 音响诊断 |
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| 62. | acoustic surveying |
| 音响测量 |
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| 63. | chime flirt |
| 音响摆轴 |
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| 64. | Acoustics Engineering Company |
| 音响工程公司 |
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| 65. | light and whistle buoy |
| 音响灯标 |
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| 66. | sound control panel |
| 音响控制组 |
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| 67. | Acoustics Appliance Plant |
| 音响电器厂 |
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| 68. | audible warning sound |
| 音响警告 |
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| 69. | High-fidelity music centre/system;hi-fi |
| 高保真音响 |
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| 70. | sonic bearing |
| 音响方位 |
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