radio distance measurement 中文意思是什麼
radio distance measurement
解釋
無線電測距- radio : n. 1. 無線電訊[電報，電話]；無線電，射電。2. 無線電廣播；無線電（廣播）臺。3. 收音機。vt. ,vi. 用無線電傳送[廣播]；（向…）作無線電廣播[傳送]；用X射線拍照；用鐳醫治。
- distance : n 1 距離，路程。2 遠隔，遠離；遠處，遠方。3 （時間的）間隔，長遠，長久。4 懸殊。5 隔閡，疏遠。6 ...
- measurement : n. 1. 測量，計量，量度。2. 份量，尺寸，大小，寬度，厚度，深度（等）。3. 測量法。 measurement goods （按體積、容積計算的）體積貨物。
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Ultrasonic distance measurement belongs to the category of uncontact measurement. in the condition it has advantage which contact measure does n ' t has contrasting with uncontact measurement. ultrasonic measure is not influenced by rays of light in the range, and has simple struture, and cost cheaply cotrasting to other uncontract measurement such as laser measurement, rared ray easurement, radio measurement
超聲波測距屬于非接觸檢測的范疇，它在許多場合有接觸測量不可比擬的優越性，同時與激光、紅外、無線電等其它非接觸性檢測相比，超聲檢測在一定距離范圍內不受光線影響、結構簡單、成本低等特點。
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