A rainwater discharging pipe, a distributing pipe and a water quality sensor are arranged inside the safety distributing well;
安全分流井内设有雨水排水管、分流管和水质传感器；
A rainwater discharging pipe, a distributing pipe and a water quality sensor are arranged inside the safety distributing well;
安全分流井内设有雨水排水管、分流管和水质传感器；
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