As other crematoria install new equipment to comply with rules on reducing mercury emissions, some are making profitable use of excess heat that otherwise would be wasted.

为了遵守要求减少水银蒸发量的规定，其他火葬场安装了新设备。一些火葬场正在利用火化余热来产生利润，否则就会白白浪费。

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These regulations address track, equipment, railroad operating rules and practices, qualification and certification of locomotive engineers, control of alcohol and drug use, and other subject matters.

这些规定阐述了涉及诸多事宜，包括：轨道、设备、铁路的运营规定和操作方法、列车司机的资格鉴定和认证、酒精和药物的使用的管制等，以及其他主题。

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On April 17, 2012, EPA issued new rules requiring operators to use special equipment to separate and capture the gas and liquid hydrocarbons from the flowback that comes from the fractured wells.

FORBES: Why Anti-Fracking Groups Are Shifting Their Story From Water To Air Quality