瓶装水公司也并没有被要求像自来水供应商那样，只能通过公证的实验室进行水质检测。
Nor must bottled water companies test water with certified laboratories, a requirement for tap water suppliers.
科学家们还将验证这些方法，来节省其它水质检测实验室的时间和花费。
The scientists will also validate the methods to save time and expense for other water testing laboratories.
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