基于费率的材料成本是指定了标准费率的消费材料资源(如建筑材料)的成本。
Rate - based material costs are costs of consumable material resources, such as building materials or supplies, to which you have assigned standard rates.
基于费率的材料成本是耗材资源（例如建筑材料或物资）的成本，您可以为材料资源指定标准费率。
Rate-based material costs are the costs of consumable material resources, such as building materials or supplies, to which you have assigned standard rates.
首先，制定全国性的收购费率，或者可展期资产标准- - - - -两种途径都要求公用事业公司购买最低额度的清洁能源，或者必须以固定的价格购买。
First, institute national feed-in tariffs or a renewable portfolio standard - two ways to require that utilities buy clean energy in a minimum amount or at a certain price.
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