室内消火栓系统给水管道有枝状管网和环状管网两种形式。
Indoor water supply pipeline fire hydrant system has two forms: branched network and ranged network.
本实用新型使饮用水处于活动和循环状态，可以保证饮用水在供水管道内不受二次污染。
Drinking water can be kept in the movable and circulated state, and the drinking water can be ensured not to be polluted for the second time in water supply pipes.
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