您要查找的是不是：
- 消耗器customer
- 器utensil
- 消耗器等免费维修对象之外的商品的消耗、故障。Problems due to the consumption or damage of consumable items not eligible for free repair.
- 管理器manager
- 资源管理器explorer
- 必需essential
- 必需的necessitous
- 伺服器server (computer)
- 断路器breaker
- 感应器inductor
- 联轴器shaft joint
- 清洁器cleaner
- 稳压器manostat
- 读卡器card reader
- 混频器mixer
- 接触器contactor (switch)
- 筛选器sizer
- 集线器hub (network)
- 逆变器inverter
- 熔断器fuse
