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51. | fire exit drill |
| 消防疏散训练 |
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52. | escape lighting |
| 疏散照明装置 |
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53. | aircraft evacuation |
| 飞机人员疏散 |
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54. | poor meteorological dispersion |
| 气体难于疏散 |
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55. | fire alarm evacuation signal |
| 火警疏散信号 |
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56. | exit travel distance |
| 出口疏散距离 |
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57. | escape route lighting |
| 疏散路线照明 |
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58. | voice evacuation signaling system |
| 广播疏散信号系统 |
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59. | EVACNET = Evacuation Network Computer Model |
| 疏散网络计算机模型 |
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60. | emergency evacuation route |
| 紧急疏散路线 |
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