GB 50261-2017 第5.7.3条
| **** | The water flow velocity and flow rate for pipe network flushing shall not be less than the design water flow velocity and flow rate of the system; pipe network flushing should be carried out by zone and by section. |
| **** | The water flow velocity and flow rate for pipe network flushing shall not be less than the design water flow velocity and flow rate of the system; pipe network flushing should be carried out by zone and by section. |
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