system of economic calculation ==> 经济核算制,经济核算制 system of economic contract ==> 经济合同制,经济合同制 .
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Through power flow calculation of tie lines, the effects of the changes in generation, load and network structure on the voltage quality and safe and economic operation of the system can be analyzed.
通过联络线的潮流计算，可以分析发电出力和负荷以及网络结构的改变对系统电压质量和安全经济运行的影响。
It establishes coordination analysis model between sub-system and internal system of ocean economic complex system with calculation method.
建立海洋经济复合系统子系统内部与子系统之间的协调度分析模型，并给出了协调度的计算方法。
The direct and indirect economic benefits obtained by cophase system are quantitatively evaluated and the calculation equation of investment returning year is derived.
定量计算了同相供电系统的直接和间接经济收益，并得到了回收年的计算公式；
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