low radio frequency 中文意思是什麼

low radio frequency 解釋
低射頻
  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • 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。
  • frequency : n. 1. 屢次，頻仍，頻繁。2. （脈搏等的）次數，出現率；頻度；【物理學】頻率，周率。
  1. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - general requirements and tests

    手工壓接工具.低頻和射頻用電纜和電線終端壓接工具.一般要求和試驗
  2. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - part 1 : general requirements and tests

    手工壓接工具.低頻和射頻設備用電纜和電線的壓接終端工具.第1部分:一般要求和試驗
  3. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - part 1 : general requirements and tests ; german version en 50109 - 1 : 1995

    手動壓接工具.低頻和射頻應用的電纜和電線用壓接工具
  4. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - particular requirements - contacts of electrical connectors

    手動壓接工具.低頻和高頻電線和電纜壓接連接工具.第2 - 3部分:電器插接件觸點專門要求
  5. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - particular requirements - termination of twin - ax cable for databus applications

    手動壓接工具.低頻和高頻用電線和電纜壓接連接用工具.專門要求.數據總線用帶2個內芯的電纜連接專門要求
  6. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - part 2 - 5 : particular requirements for the termination of twin - ax cable for databus applications

    手工壓接工具.低頻和射頻設備用電纜和電線的壓接終端工具.第2 - 5部分:數據總線設備用屏蔽雙導線饋電線電纜的終端的特殊要求
  7. Design engineers now selecting pmbldc motors over conventional dc or induction motor drives for the following reasons : 1 ) the absence of brushes results in an essentially maintenance free operation and eliminates the undesirable effects of commutation such as sparks, brush - loss, radio - frequency interference, etc. 2 ) the low inertia of the rotor enhances the quality of the mechanical response of the motor, shortening the acceleration and deceleration time. 3 ) utilizing rare - earth permanent magnet materials with high coercive force results in substantially higher efficiency than their counterpart with brushes of the same size. 4 ) because of the absence of commutation segments, the stator construction is simple

    現在的工程師們更為青睞永磁無刷直流電動機是因為以下幾點原因： （ 1 ）去除了電刷的永磁無刷直流電動機徹底地免除了維護而且消除了我們不希望的由於換向帶來的火花、電刷損耗以及無線電干擾等等； （ 2 ）低轉動慣量的轉子提高了電機機械響應的質量，從而縮短了電機加速和減速的時間； （ 3 ）高矯頑力稀土永磁材料的使用使得同樣尺寸的永磁無刷直流電動機比傳統的直流電動機效率高； （ 4 ）由於沒有機械換向部分定子的結構簡單了。
  8. With the development of social economy and science technology, rf ( radio frequency ) card technology is more broadly applied by all kinds of trades, specially such as mass transit, wireless communication identify finance trade and safety - defend etc we use usually magnetic card or touch ic ( intelligent card ) in the past, but the shortage is that the card is read - write low efficiency frictional waste and short life, so that it ca n ' t guarantee the reliability of system for long term running

    隨著社會經濟和科技的發展，射頻卡技術越來越廣泛地應用於各種行業，特別是公共交通、無線通信、身份識別、金融交易和安全防衛等行業。過去，智能卡應用領域常採用磁卡或接觸式ic卡，但由於讀寫速度慢，易磨損，使用壽命短，無法保證系統長期運行的可靠性和方便性。
  9. General performance requirements and methods of measurement for low - power radio frequency unit of airborne fire control radar

    機載火控雷達低功率射頻單元通用技術要求和測試方法
  10. It is equipped with 120w radio frequency laser producer and cti dynamic focusing, so there is smaller light point, and larger tange of marking. besides, its forceful laser power and unparalleled processing speed makes a accurate and vivid effect possible. it costs low and need no materials. the degree of the clearness and depth of marking can be controlled freely

    該機選配美國進口120w射頻激光器cti動態聚焦，光點尺寸更小打標范圍更大，加上強悍有力的激光功率，無與倫比的加工速度，實現了精確逼真的加工效果，加要成本低廉，無需耗材，標記清晰深淺度隨意控制，適用於多種你想加工的非金屬產品。
  11. The article puts forward a new digital wireless transmission system which is realized by combining a mcu as its control center with a rf ( radio frequency ) module. compared with using bluetooth technology, this resolution can guarantee the quality of the received signal even in an unstable environment, by the way the cost is quite low

    本文設計一種以ti公司msp430系列的單片機為控制核心結合射頻模塊實現傳感信號的無線數字傳輸系統。與傳統採用藍牙技術的方法相比，此方法在環境不穩定時，仍能保證良好的數據傳輸質量，且所需成本小。
  12. The demand for receiver ’ s every guide line has become much stricter, especially for linearity requirement of receiver ’ s radio frequency front - end. we assembled four modules on a rogers5880 board, and realize the function of filtering, amplifying, mixing, and the last low - pass filtering output

    本文在rogers5880的基板上將四個功能模塊組合在一起，完成了對x波段信號（ 10 . 5ghz ）的濾波，放大，混頻，以及最後的低通濾波輸出。
  13. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - particular requirements - centre contacts of rf connectors, series smz

    手動壓接工具.低頻和高頻電線和電纜壓接連接工具.專門要求. smz系列高頻插接連接的中間接點專門要求
  14. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - part 2 - 4 : particular requirements for centre contacts of rf connectors, series smz

    手工壓接工具.低頻和射頻設備用電纜和電線的壓接終端工具.第2 - 4部分: smz系列rf連接器的中心觸點的特殊要求
  15. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - particular requirements - radio frequency connectors and concentric contacts - open throat tools with removable and interchangeable dies, sizes a to g, q to t, v and w

    手工壓接工具.低頻和射頻用電纜和電線終端壓接工具.特殊要求.射頻連接器和同軸接觸點的手工壓接工具.有可拆卸和可互換模開式工具規范，規格a - g q - t v和w
  16. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - part 2 - 2 : particular requirements for radio frequency connectors and concentric contacts - open throat tools with removable and interchangeable dies, sizes a to g, q to t, v and w

    手工壓接工具.低頻和射頻設備用電纜和電線的壓接終端工具.第2 - 2部分:射頻連接器和中心觸點的特殊要求.尺寸在a到g q到t v和w的帶可移動和可互換壓模的開喉式工具
  17. The radio frequency receiver supports interface for instrument and base station and air interface for mobile station, and it takes the task of magnifying low noise and down - convert and digital baseband processor filtering and magnifying intermediate frequency to reverse link signal. the digital baseband processor samples the received signal after down - convert radio frequency signal to intermediate frequency signal and processes other processing and supports interfaces to computer, next sends data to computer. the gps receiver supports interface for instrument and gps system, and receives gps system signal, next it demodulates the correlative information and sends out benchmark clock signal we need

    射頻接收部分主要為儀器和基站、移動臺提供空中介面，其主要任務是在反向鏈路上對接收到的射頻調制信號進行低噪聲放大、射頻下變頻變換、中頻濾波放大等;數字基帶部分為對接收信號變頻為中頻后進行a / d采樣，以及其他的rsp處理並和計算機提供介面，將數據送至計算機進行后臺處理、顯示等; gps接收機部分為儀器和gps系統提供介面，接收gps系統信號並解調相關信息，輸出所需的電文及時鐘基準信息等。
  18. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - part 2 - 3 : particular requirements for contacts of electrical connectors

    手工壓接工具.低頻和射頻設備用電纜和電線的壓接終端工具.第2 - 3部分:電連接器觸點的特殊要求
  19. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - particular requirements - radio frequency connectors and concentric contacts - open throat tools with fixed dies, sizes a to e, v and w

    手工壓接工具.低頻和射頻用電纜和電線終端壓接工具.特殊要求.射頻連接器和同軸接觸點.有固定模開式工具，規格a - e v和w
  20. Hand crimping tools - tools for the crimp termination of electric cables and wires for low frequency and radio frequency applications - part 2 - 1 : particular requirements for radio frequency connectors and concentric contacts - open throat tools with fixed dies, sizes a to e, v and w

    手工壓接工具.低頻和射頻設備用電纜和電線的壓接終端工具.第2 - 1部分:射頻連接器和中心觸點的特殊要求.尺寸a到e v和w的帶固定壓模的開喉式工具
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