To provide multiservice in access network may effectively reduce operation, maintenance and network construction expense and also increase network utilization rate.

在接入网中提供多业务可以有效地降低运营维护成本和网络铺设费用，同时提高网络利用率。

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The process pumps in pulp and paper mill are often out of order, their inefficient operation is at the expense of a great deal of maintenance cost and production.

制浆造纸厂使用的造纸过程泵发生故障的现象几乎很普遍，人们通常采用被动检修的方法来维持其低效的运转，这是以很高的维修费用和停机损失做为代价的。

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