源源不断的稳定的维修保养费大约占到Sun销售额的40%。

It provides a healthy stream of maintenance fees, about 40% of Sun's sales.

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游艇的维修保养费是很昂贵的。

The upkeep of a yacht is very expensive.

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中央空调主机及系统的设计、按装、调试、维修、保养费下浮30%…4：中央空调系统的水处理。

Host and central air-conditioning system design, according to loading, debugging, maintenance, maintenance costs 30 percent to float downward... 4: central air-conditioning system of water treatment.

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