亚洲欧美第一页_禁久久精品乱码_粉嫩av一区二区三区免费野_久草精品视频

I analysis the underModulation,total modulation and over modulation.And the power distribution ,spec

I analysis the underModulation,total modulation and over modulation.And the power distribution ,spectrum.you can understand the basic of am.

標簽： modulation underModulation distribution the

上傳時間： 2013-12-17

上傳用戶：sevenbestfei