operational and maintenance cost 经营及维护费用
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。
The retailer achieves reduced operational cost related to maintenance, space allocation, and power consumption.
零售商还能够减少与维护、空间利用和功耗相关的运营成本。
With these versions, Lotus developers carefully picked what are often the highest value targets for reducing TCO: disk space, storage costs, I/O operations, and the cost of operational maintenance.
通过这些版本，Lotus 开发人员仔细地筛选出了最有利于降低 TCO 的目标：磁盘空间、存储成本、I/O 操作和操作维护成本。
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