decrease its operation cost 降低了运行成本
It can not only supply heat for adjacent users, but also decrease operation cost of circulating water pumps and increase the flux and output of the units.
认为此举不但可以解决附近用户的供暖问题，而且可以降低凝汽器循环水泵的运行费用，提高机组的通流量及输出功率。
The economic analysis results have shown that the transportation cost of oil and energy consumption decrease after the heating system of tanks get out operation.
经济分析结果表明，油罐热力系统冬季退出运行后，原油输送成本降低，节能降耗效果显著。
In order to decrease the rate of fault and reduce the cost, this paper researches and improves the reliability of operation mechanism of CW1 series circuit breaker.
本论文的目的是研究并提高CW1系列智能型万能式断路器操作机构的可靠性，可以减小故障的发生率，从而减少用户的损失。
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