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31. | pedestal hydrant |
| 柱形消防栓 |
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32. | hydrant programme |
| 装设消防龙头计划 |
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33. | tifreezing hydrant |
| 不冻防火栓 |
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34. | hydrant control valve |
| 消防栓控制阀;消防栓开关掣 |
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35. | reverse hydrant |
| 中继消火栓 |
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36. | antifreezing hydrant |
| 不冻消防栓 |
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37. | blocked hydrant |
| 堵塞的消火栓 |
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38. | hydrant distribution |
| 消火栓配置 |
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39. | outside hydrant |
| 室外消火栓 |
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40. | hydrant indication sign |
| 消火栓指示标志 |
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