这就要求机器在工厂里是一个灵活的资源，在其整个使用周期里得到最大的利用。
This requires machinery to be a flexible resource on the factory floor with a greater purpose in maximizing utilization throughout its lifetime.
由于这个原因，通常来说对整个feed进行签名是不合实际的，因为条目通常都是从上下文中取出的，并且在其他应用程序中使用。
For this reason, is usually not practical to sign an entire feed, because entries are typically taken out of context and used in other applications.
作为最广泛使用的建筑材料，水泥基材料在其生产、使用以及废弃等整个生命周期内对生态环境具有重要的影响。
As a building material widely used, the ecological environment is greatly, affected by cement-based materials during its life-cycle containing all processes of production, use and scrapping.
作为最广泛使用的建筑材料，水泥基材料在其生产、使用以及废弃等整个生命周期内对生态环境具有重要的影响。
As a building material widely used, the ecological environment is greatly, affected by cement-based materials during its life-cycle containing all processes of production, use and scrapping.
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