环保局负责地下水及饮用水的办公室主任辛西娅·多尔蒂表示，环保局已有规定要求90%的污染物必须从饮用水系统中过滤除去。
Current EPA regulations say that more than 90 contaminants must be filtered out of drinking-water systems, said Cynthia Dougherty, director of EPA's Office of Groundwater and drinking water.
而联邦铁路管理局说这种新型“安全控制系统”将只应用在6万5000英里铁路上(铁路总里程约为14万多英里)，但铁路行业估计它将覆盖大半个铁路网络。
Whereas the FRA says that the new safety system will apply to only 65, 000 miles (out of a total of over 140, 000), the industry reckons it will cover more than half the network.
由山西煤矿安全监察局组织开发的“山西省煤矿安全培训考试系统”，经过一年多安全培训考核的实践，取得良好的效果，基本实现了预期的设想。
The examination system developed by the Shanxi Bureau of Coal Mine Work Safety has got good effectiveness after practicing for over one year and basically achieving expected result.
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