Easy to clean dirty water tank to reduce the growth of bacteria.

易于清洁的污水箱可减少细菌滋生。

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Moreover, a strictly price-based comparison between clean and dirty energy ignores many of the other non-market barriers that must be solved for clean energy to adopted on a meaningful scale, such as regulatory and infrastructure hurdles, issues with intermittency, technology risk, and other barriers.

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However, if your mother-in-law is otherwise clean (washes her hands regularly, spot-cleans parts of her body that are dirty on a daily basis, and wears clean clothes for example) and is fully responsible for herself in other ways, this issue may not be a problem for her.

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What does a dirty-fuel player like Consol want with a clean-burning fuel like natural gas?

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