mid frequency 中文意思是什麼

mid frequency 解釋
中頻
  • mid : adj. （superl. midmost ）1. 中央的，中部的，中間的〈常構成復合詞〉。2. 【語言學】央母音的，半開母音的。mid2, 'mid〈詩〉＝ amid.
  • 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. We have complete equipments including 5 mid - frequency electric furnace, 2 heat treatment resistance furnace, 1 heat treatment reverberatory furnace, 1 blast cabinet, 6 lifting equipments, 4 large sand - mixer as well as central control laboratory and central physical laboratory and so on. above equipments establish good foundation for large - scale production of exported castings

    一臺、大型噴丸清理室一臺、行吊起重設備6臺、大型混沙機4臺和中心化驗室、中心物理實驗室等鑄造設備，精良齊全的設備為生產大批量高質量的出口鑄件打下良好的基礎。
  2. There are low frequency vortex moves northward at low - latitude and southward at mid - latitude ; there are low frequency vortex moves northward at low - latitude and southwestward at mid - latitude in flood years, it ' s easily to bring on convergence or divergence in large - scale and heave rainfall

    （ 3 ）澇年低頻olr在經向上同時存在由低緯度向北和由中高緯向南的傳播，二者交匯在20 30 n之間。旱年則沒有顯著的匯合區。
  3. Venation wave spectrum analysis finds out shape - structure change of mid - frequency signal fluctuation

    脈絡波譜圖分析查明了中范圍（頻率）信號波動的形態結構變化。
  4. In order to exert the speed performance of gaas mid frequency switch and improve the agility to be compatible with ttl control electric level of most present system, we studied the gaas mid frequency switch with ttl driver

    為了充分發揮gaas開關的速度性能，提高gaas微波開關的使用靈活性，以及與目前多數系統中的開關ttl控制電平相兼容，我們對ttl電平驅動器的gaas中頻開關進行研究。
  5. The performance, merits and demerits of various typical mid - frequency induction furnace at present are reviewed briefly. features and application prospect of voltage series connection resonance mid - frequency induction furnace are described

    簡述了當今各典型中頻感應爐的性能及優缺點，介紹了電壓型串聯諧振中頻感應熔煉爐的選用情況及在國內應用的前景。
  6. Nanhai jet electronic co. ltd. & pingzhou electronic factory is one medium - size enterprise of guandong real faith enterprise group ltd. manufactures coil. transformer filter, mid - frequency transformer, fixed inductance, etc

    南海佳迪電子有限公司、平洲電子廠是廣東省昭信企業集團公司屬下的企業，是生產線圈、變壓器、濾波器、中周、固定電感器等電子元件的中型企業。
  7. An observation of curative effect treating facial paralysis with needling of opposite side and point stimulation with mid - frequency current

    繆刺法加穴位中頻電刺激治療頑固性面癱療效觀察
  8. Design based on dsp for mid - frequency power source in oil well

    的採油加熱中頻電源系統設計
  9. And classic pid control method and numerical pid control method have been introduced in the paper. the paper adopt stabilization border method to set the pid parameters and simulates the control system which is based on matlab / simulink. simulation results indicate that pid control ’ s simulation results have a good effect in low - frequency stage, but it is not perfect in mid - frequency and high - frequency stage

    採用穩定邊界法實現對pid參數的整定，並基於matlab / simulink對控制系統進行了模擬，模擬結果表明:低頻段pid控制正弦跟蹤曲線取得了良好的效果，而在中頻和高頻段時的跟蹤效果不是很好， pid控制的階躍響應超調量較大， pid控制三角波曲線的高頻性能也不理想。
  10. In the work, mid - frequency pulse magnetron sputtering is used to prepare znoral thin films used as the back reflector of the thin silicon films solar cells. the best techological condition was obtained by optimizing the preparing conditions, ( var is decided by the deposition rate, target voltage : 265v, gas pressure : 0. 6pa, the high base vacuum is expected

    本文採用中頻脈沖磁控濺射法，通過優化zno ： al薄膜的制備工藝，如靶電壓、本底真空度、工作氣壓、襯底溫度、 o _ 2 ar ，得到可用於硅薄膜太陽能電池背電極的zno ： al薄膜。
  11. The author designed and developed a single phase mid - frequency inverter control unit, which is based on dual micro - processor system. the inverter is modulated by pre - set spwm pulse width wave

    本文研製出一種基於雙微處理器（ mpu ）控制的單相中頻逆變電源控制裝置，逆變電路基於開關預置spwm波脈寬調制。
  12. It analyze the performance index of the mid - frequency modulator firstly, abased this, analyze the design of it, which include the agc circuit 、 dds circuit 、 and so on. fourthly, discuss how to realize the digital mid - frequency modulator

    在分析了中頻調制器所要求的性能指標的基礎上，對數字中頻調制器進行了工程設計分析，包括agc電路設計、 dds方案選擇等。
  13. As for frequency domain, tirls includes mainly 3 frequency bands : ( 1 ) high frequency band with period less than 1 year, which is relative to weather ; ( 2 ) mid frequency band with predominant period 1 year, relative to sun, plant and season ; ( 3 ) low frequency band with period more than 1 year, relative to the crustal activity and long period variation of atmosphere temperature

    從頻率域看，地表熱紅外輻射主要存在3種頻段： （ l ）高頻，周期小於1年的天氣變化； （ 2 ）中頻，以1年周期為主的太陽、植被與季節變化； （ 3 ）低頻，大於1年周期的大氣變化的長周期成份，地殼緩慢的運動引起的熱輻射變化亦屬于長周期變化。
  14. 2. using multilevel high frequency and mid frequency narrowband filter, so as to dispel any possible interfering signals

    1 .採用進口元件裝配2 .可分頻的最大為40頻點
  15. This dissertation use rebuild of combined telemeter system, which is the subsystem of the red - nine system developed by the aerospace measure and telecommunication incorporated company, as background, study and discuss frequency synthesize technology. the mostly task is to study how to use the direct digital synthesis technology to design and realize the high speed digital mid - frequency modulator, and give the answers of the problems which emerge in the development

    本文以某測通公司研究生產的「紅九」系統中遙測模擬組合子系統為背景，對其中的數字中頻調制器的研究開發進行探討，主要任務是研究如何用直接數字合成技術進行高速數字中頻調制器的設計與實現、並提出了研發過程中所出現的問題的解決方案。
  16. The control of the spatial mid frequency wavefront distortion was achieved based on our cri wavefront sensing and lctv wavefront correcting system. the results of our research show that crs interferometer can be used to diagnosing the mid and low frequency wavefront distortion of a laser beam and lcslm can be used to availably controlled it

    通過以上研究，說明我們建立的環路徑向剪切干涉儀可以用於icf激光驅動器的中低段波前畸變的檢測，並且液晶空間光調制器可用於它的前級中存在的中頻段波前畸變的校正。
  17. Software radio receiver system based on direct mid - frequency sampling, which is researched in this paper, is one of the feasible software radio system nowadays

    本文研究的直接中頻采樣軟體無線電接收機系統就是軟體無線電系統一種現階段可行的方案。
  18. The theory analysis and emulation research prove that software radio receiver based on direct mid - frequency sampling is feasible, and possesses the strong flexibility and expansibility

    理論分析和模擬研究表明直接中頻采樣軟體無線電接收機是可行的，而武漢理工大學碩士學位論文且具有很強的靈活性，可擴展性。
  19. Moreover, at the mid - frequency of 15ghz, the maximum of the phase error is lower than 3. 4 degree

    另外，所有相移位在中心頻率15ghz處的相位誤差都小於3 . 4度。
  20. Thirdly, give the way to how to design the digital mid - frequency modulator, discuss the design process of the system, and give the block diagram of it

    其次，對遙測模擬組合子系統中的數字中頻調制器的設計作了分析。給出了系統設計的過程與整個遙測模擬子系統的系統框圖。
分享友人
分享到 Line

分享到臉書