喷针数量少，水、气管路短，便于清洗和更换备件。
It has small quantity of needles, short water, air pipe, is easy for cleaning and replacement.
特殊的保养计划需要平衡提前更换备件的费用和一旦发生故障时的维修费用。
The specific plan needs to balance the cost ofprematurely replacing a part against the cost of its failure in service.
电池备份缓存有故障，更换备件号（FRU） 90P5245，控制器1，错误代码：31。
The battery-backup cache device, replacement part number (FRU) 90P5245, is defective: controller 1, Error code: 31
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