The decision model proposed is different from traditional models and variable expense, not variable cost, is considered.

与传统的模型不同，本文建立的决策模型中考虑了变动费用，而不是变动成本。

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We need to know that energy consumption represents the single largest controllable operating expense for a building, typically a third of variable expenses.

我们应当认识到，能源消耗是建筑物的唯一一项最大的但可控制的营运费用，一般为可变费用的三分之一。

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All electronic SS type camera tube is characterized by its low expense of power, variable scan frequency, high resolution, small size and light weight.

采用图案电极的静电聚焦静电偏转(SS型)摄像管，具有功耗低、扫描频率可变、分辨率高、体积小和重量轻等优点。

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As one of the world's most reliable, scalable, and cost-efficient web infrastructures, AWS has changed the way businesses think about technology infrastructure--there are no up-front expenses or long-term commitments, capital expense is turned into variable operating expense, resources can be added or shed as quickly as needed, and engineering resources are freed up from the undifferentiated heavy lifting of running onsite infrastructure - all without sacrificing operational performance, reliability, or security.

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Further, the AWC alleges that during the period from May 2008 through July 2008, Abern provided five Cambridge customers with variable annuity expense disclosure forms that contained inaccurate information, in that the forms understated the annual expenses that would be charged.

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These hedges effectively convert these variable rate bank loans into fixed rate loans, better matching the interest expense from the loans to the income from the landfill gas projects they finance.

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