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41. | fire exit drill |
| 消防疏散训练 |
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42. | fire alarm evacuation signal |
| 火警疏散信号 |
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43. | emergency evacuation route |
| 紧急疏散路线 |
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44. | vertical escape exit |
| 竖向疏散口 |
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45. | EVACNET = Evacuation Network Computer Model |
| 疏散网络计算机模型 |
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46. | escape lighting |
| 疏散照明装置 |
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47. | poor meteorological dispersion |
| 气体难于疏散 |
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48. | open escape route |
| 敞开式疏散通道 |
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49. | voice evacuation signaling system |
| 广播疏散信号系统 |
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50. | safe dispersing area |
| 安全疏散面积 |
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