With a system designed based on current approaches, most of the changes are handled manually at a great operational cost.
按照当前方法设计的系统，大部分变更都以极高的运营成本人工处理。
Effective membrane fouling control techniques can increase the flux and the system stability, and reduce the maintenance and operational cost.
有效的膜污染防治技术，可以增加膜通量，增强系统稳定性，减少系统维护和运行费用。
Field operation shows that such a system has the characteristics of strong real-time state monitoring, wide signal coverage, flexible and reliable data transmission and low operational cost.
现场运用表明，系统具有状态监测实时性强、信号覆盖范围广、信息传输灵活可靠、运营成本低的特点。
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