家庭供水系统
Domestic water supply system
以上为机器翻译结果，长、整句建议使用 人工翻译 。
多数水样来自纽约、丹佛城市市政供水系统，但小组也从4个农村家庭私人水井供水的淋浴喷头做了调查。
Most of the water samples came from municipal water systems in cities such as New York and Denver, but the team also looked at shower heads in four rural homes supplied by private Wells.
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