Better regenerating effect, long operation period and low costs of water handling are characteristics of the method.
两步再生法具有再生效果好、运行周期长、水处理费用低的特点。
In this paper, the method of annually costs is used to found the collective optimization model including gas transportation pipeline optimum design and compressor station optimum operation.
本文采用年值法建立了包含输气干线优化设计和压缩机站优化运行的综合优化模型，这两个模型分别属于混合离散优化和组合优化。
An example is used to illustrate how to design classify cargo and operation activity-based cost measuring method and control costs in a certain bulk cargo terminal.
在实地研究部分以某港口杂货公司为例采用部门作业成本法，按照成本动因对营运间接费用和辅助营运费用进行了分配。
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