While this estimate has been accused of being understated (and it is worth noting that the Environmental Protection Agency came to an even lower estimate), it presented a baseline for analysis.
然而，这一预计被指责为过于乐观(环境保护局给出的预计甚至更低)，它所代表的只是分析的底线。
To create tradable water rights, Australia first drew up a baseline for water use, taking into consideration past commercial, social and environmental needs.
为了创造可交易的用水权，澳大利亚先是对用水权划了一条基准线，将过去的商业，社会和环境需求考虑进去。
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