为了确保BMW汽车的上述性能不会降低，建议在更换磨损部件时采用BM W原厂配件。
In order to preserve these quality-aspects, it is advisable to replace wearing parts with original BMW components.
该装置还具有辊子磨损后调整方便，运行平稳，零部件不易损坏，节省维修费用，降低能耗等诸多特点。
In addition, the system has such advantages as easy setting of the worn roll, smooth running, durable parts, low maintenance cost as well energy-saving operation.
控制器可以延长低产油井的开采寿命，减少各机械部件的磨损，有效降低用电成本。
The controller can prolong the productive life of a well with low production, and decrease wear-and-tear of each mechanical part so as to decrease the cost of power utilization.
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