玉米燃料乙醇作为化石燃料的替代品，能量效率(净能量或能量比)是评价其可持续性的一个重要标准。
Energy efficiency (net energy gain or energy ratio) of corn-based ethanol as a substitute for fossil fuel is an important criteria for assessing its sustainability.
哪些环境与经济情况，对社区、专题和相关的可持续性目标是最值得评价？
Which environmental and economic conditions are most important to evaluate for the neighborhood, project and related sustainability goals?
森林资源可持续性评价是森林资源管理决策的重要依据。
Evaluation of sustainability of forest resources is an importance basis for the strategy making of forest resource management.
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