無線電話頻率 的英文怎麼說

中文拼音 [xiàndiànhuàbīn]
無線電話頻率 英文
radiotelephone frequency
  • : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
  • : Ⅰ名詞(說出來的能夠表達思想的聲音, 或者把這種聲音記錄下來的文字) word; talk Ⅱ動詞(說; 談) talk about; speak about
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 率名詞(比值) rate; ratio; proportion
  • 無線 : wireless無線電報 wireless telegram; radiotelegram; 無線話筒 radio microphone ; 無線裝訂 unsewn binding
  • 電話 : 1. (電話裝置) telephone; phone; telephone system; telephony; [美俚] horn 2. (用電話裝置傳遞的話) phone call
  • 頻率 : frequency; rate
  1. In the past few years, there has been significant interest in digital video applications like video conferencing and video e - mailing over internet, video telephony over public switched telephone networks ( pstn ) and wireless networks, etc. by removing spatio - temporal redundancies existing in adjacent frames, motion estimation can reduce the coding bit - rate significantly

    低速編碼技術已在許多領域得到了應用,如在pstn (公共網) 、網、 n - isdn (窄帶綜合業務數字網) 、 b - isdn (寬帶綜合業務數字網)上傳輸視會議、可視手持終端等。
  2. As the key block of the wireless communication transmitter in rf, it is very useful in improving the output power and efficiency, lowering the loss of the supply, lowering the size and the weight, lengthening the time of communication. class e power amplifier which is suitable to amplify envelop signal is very important in modern communication system

    放大器( pa )作為通信射發射機中不可缺少的關鍵路,對于提高手機的功、降低源損耗、減小體積重量、延長通時間有著舉足輕重的作用,而適用於恆包絡信號放大的e類功放大器,更是在現代通信系統中佔有十分重要的地位。
  3. These include the well - known am, fm, shortwave and citizens bands and vhf and uhf television channels, as well as hundreds of less familiar bands that serve cellular and cordless telephones, gps trackers, air traffic control radars, security alarms, radio - controlled toys and the like [ see box on page 71 ]

    這些包括眾所周知的am 、 fm 、短波、民用帶, vhf和uhf道,以及數百個較不為人知的帶,供行動、家用、 gps追蹤系統、航空管制雷達、安全警示與遙控玩具等使用(見85頁譜) 。
  4. Replacement of high power high frequency and medium frequency radio transmitters

    更換高功及中
  5. Often, this is used to make appliances appear to " talk " or wall outlets appear to be " sending radio frequency signals ", or strong radio interference will be found to emanate from a point in mid air

    這常常使設備好像是在「談」 ,或墻縫處好像在「傳送信號」 ,或強大的干擾會被發現彷彿是來自於空中任何一處。
  6. The system offers a range of unique features that are not available from other wireless communication platforms : fast call set - up time ; excellent group communication support ; direct mode operation between radios without going through the radio infrastructure ; packet data and circuit data transfer services ; frequency economy ; and excellent security features

    系統擁有少其他通訊平臺缺乏的獨特功能,如快速接駁通出色的群組通訊支援通訊機之間不必經過基建而以直接模式運作封包數據和路數據傳送服務便宜和優良的保安功能。
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