说明： 一个有10年电子产品研发经验的工程师和10年IT知名公司研发中心管理经验的技术管理者谈谈他这20年对通信射频电路的工作经历与感悟，值得下载！ (A 10-year experience in electronic product development engineers and 10 years of IT management experience in leading R & D Center' s technical manager to talk about his 20 years of work experience RF communications and insights, it is worth downloading!)
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