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.
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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