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內容
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開始
1
電線
2
空氣
切換目錄
通訊課程/傳輸介質
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來自華夏公益教科書，開放的書籍，為開放的世界
<
通訊課程
電線
[
編輯
|
編輯原始碼
]
通訊訊號透過電線以輻射電磁波的形式傳播到接收器
空氣
[
編輯
|
編輯原始碼
]
通訊訊號透過空氣以輻射電磁波的形式傳播到接收器
類別
:
書籍:通訊課程
華夏公益教科書
