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徒弟:请师傅介绍一下手持机的具体电路。师傅:我们以摩托罗拉9900X手持机为例分述具体电路的工作原理与检修方法。摩托罗拉8900X手持机与此基本相同,可参考。徒弟:摩托罗拉9900X手持机主要由哪几部分组成。
Apprentice: Please master about the specific circuit handheld. Master: We take the Motorola 9900X handset as an example to describe the working principle of the specific circuit and maintenance methods. Motorola 8900X handheld with this basically the same, can refer to. Apprentice: Motorola 9900X handheld mainly composed of several parts.