volume efficiency due to leakage 泄漏引起的容积效率
"The continuing impact and heightened risk of drought in the South, as a consequence of climate change, highlight the importance of our emphasis on leakage management, water efficiency and demand management, " it said.
BBC: NEWS | Business | Water firms boost profit streams
First, it would sacrifice the many benefits of micro efficiency to plug an apparent macro leakage.
FORBES: We Need Demand, Not Protectionism
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