The cost for storage and maintenance of a functional index can be high.
函数索引的存储和维护成本较高。
The high degree of automation, safety, health, comfort, easy maintenance, more cost-effective.
自动化程度高，安全、卫生、舒适，维护维修简便，性价比更优。
Ripple effect is a major factor causing high maintenance cost of large-scale software systems.
波动效应是导致大型软件系统维护费用昂贵的一个重要原因。
The utility model is of convenient maintenance with low maintenance cost and high efficiency.
本实用新型检修方便维修成本低、工效高。
The utility model is of convenient maintenance with low maintenance cost and high efficiency.
本实用新型检修方便维修成本低、工效高。
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