May be after the water regulator arc Pa, water more efficiently.. All kinds of switches place on the operating hle so that the manipulation easier.
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People have figured out how to use water more efficiently, and communities are rethinking their priorities for water use.
人们已经找到了更高效利用水的方法,并且社区正在重新考虑他们用水的优先顺序。
No matter what steps governments take to provide water more efficiently, they must change their institutional and legal approaches to water use.
无论政府采取什么措施来更有效地提供水,都必须改变对用水相关的制度和法律法规。
They were also the first to use lead to make longer pipes, which could carry water more efficiently.
他们也最早使用铅来制造长水管,改善输水效率。
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