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11. | emergency whistle |
| 紧急哨音|紧急鸣笛 |
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12. | automatic whistle |
| 自动笛 |
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13. | ""whistle blowing"" |
| 告发劣行 |
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14. | whistle budding |
| 管状芽接 |
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15. | acknowledging whistle |
| 警惕汽笛|确认汽笛 |
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16. | heterodyne whistle |
| 外差啸声 |
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17. | locomotive whistle |
| 机车的汽笛 |
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18. | farewell whistle |
| 告别汽笛 |
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19. | boatswain's whistle |
| 水手长口哨水手长口笛 |
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20. | whistle reservoir |
| 风笛储风缸 |
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