ac 中文意思是什麼

ac 解釋
＝1. air controlman 美海軍航空兵的空中交通管制員。
2. alternating current 【電學】交變電流，交流電。
3. aircraft（s）man 空軍士兵。
4. 〈拉丁語〉 Ante Christum （＝ before Christ） 公元前。

  1. The angle is contained by the lines ab and ac.

    此角由直線AB和AC構成。
  2. The effects of inductance and capacitance make it necessary to carefully design all ac transmission systems.

    電感和電容的影響，使人們必須精心地設計所有的交流輸電系統。
  3. We fought ac milan for that title, not inter

    我們是擊敗a米奪冠的，國米算什麼。
  4. The paper is made in china at ac one century

    紙是在公元一世紀由中國人發明的。
  5. Sat 58 sochaux vs lorient sat 59 ac milan vs cagliari

    星期六77葡超布拉加對士?亭
  6. Analysis of research on uhv ac transmission in china

    我國特高壓交流輸電研究現狀
  7. The evaluation of uncertainty of ac powermeter

    交流功率表測量結果不確定度的評定
  8. Input voltage : 400v dc ac peak at 1khz

    最大輸入電壓： 400v直流加交流峰值在1khz
  9. Rating structure for ac high - voltage circuit breakers

    交流高壓斷路器的額定結構
  10. General specification for ac plasma display devices

    交流等離子體顯示器件總規范
  11. The results show that the composition of these precursors are identified to be limn2l ( ac ) 2 ( or ltmn2c10h11o11 ), in which l represents citric acid radical and ac is acetic acid radical. the sintering temperature and sintering time have remarkable effects on the microstructures of limn2o4 samples

    結果表明通過低熱固相反應法可在全固相條件下得到鋰離子與錳離子達到分子級混合水平的前驅體，其組成基本上與分子式limn _ 2c _ （ 10 ） h _ （ 11 ） o _ （ 11 ）相吻合。
  12. For this purpos, from the point of the log geology, aimed at the actuality of the current fractured reservoir log geology interpretation and evaluation, based on synthetical analysis of the current domestic and foreign fruit of fractal dimension investigation of reservoir fracture, using the method and technique of fractal dimension, through the further discussion of the fractal dimension characteristics of m index and n index in the log interpretation archie model in a sample way and through the theoretic reasoning to the fractal dimension dfa and m index of fractured reservoir interval ' s log curve, according to the geophysical signification of the fractal dimension dfa of fractured reservoir interval ' s log curve shape : the more complicated the change of the curve shape is, the larger the its dfa value is, then the more complicated space structure of fracture and pore, then the higher value of m index of space structure of fracture and pore, and so on, the text propounds an improved method, based on box dimension, of covering log curve with scale grid, and by programming computes the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, then further puts this technique into application investigation, and makes analysis of application effects in the reservoirs located in l area of qx oil field from three aspects : 1. the dfa and its m index value of fractured reservoir interval ' s log curve, for instance, ac and rt curve, ect, which are derived from computing, is used to identify reservoir type by crossplotting m index with the product df _ acrt of fractal dimension of acoustical wave log curve and restivity log curve and by experiential discriminance plate of reservoir type in l area of qx oil field

    因此，對該區裂縫性儲集層的類型識別、孔滲特徵的測井地質解釋以及儲層裂縫的發育和分佈規律進行深入的研究便成為本文研究的出發點。為此，本文從測井地質的角度，針對當前裂縫性儲層測井地質解釋與評價的現狀，在綜合分析當前國內外儲層裂縫的分形分維研究成果的基礎上，利用分形分維方法和技術，通過對archie測井解釋模型中的m指數、 n指數的分形分維特性的深入淺出的論述以及裂縫性儲層段測井曲線分維d _ （ fa ）與m指數的理論推導，根據裂縫性儲層測井曲線形態分維值的地球物理意義? ?曲線變化越復雜，則其分維值d _ （ fa ）越大、裂縫孔隙空間結構越復雜、裂縫孔隙空間結構指數m值越高等特徵，提出了改進的基於盒維數的測井曲線網格覆蓋法，編程計算了裂縫性儲層段常規測井曲線（如聲波和電阻率曲線）上分形分維值及其m指數值，進而從以下三個方面對qx油田l區塊的裂縫油藏進行應用研究，效果十分理想： 1將計算得到的可變的m指數與聲波和電阻率分維之積df _ acrt進行交繪，採用儲層分維值分類技術統計分析這些參數變化的規律，並結合qx油田l區塊儲層類型經驗判別圖版，從而實現qx油田l區塊下白堊統的裂縫性儲層的類型識別。
  13. General specification for series adp ac servomotors

    Adp系列交流伺服電動機.技術條件
  14. Brushless dc cooling fans, ac cooling fans and other appropriative fans, for example : cars, refrigerators ， air - conditions and the medical mechanism etc

    直流無刷散熱風扇，交流散熱風扇及其它行業如汽車冰箱、空調、機械醫療設備等專用風扇。
  15. Voltage reducing devices for ac arc welding machines

    交流電弧焊機的自動降電壓裝置
  16. According to the study of frequency - conversion technology, it is available to convert the speed of asynchronism motor, adopting ac - dc - ac transducer, realizing to convert the speed

    通過對變頻調速技術的研究，利用變頻技術對異步電動機進行調速是可行的。
  17. In contrast to traditional synchronous motor of electrical excitation, permanent - magnet synchronous motor ( pmsm ) has more advantages, especially the occasion that requires high precision of control and high reliability, such as avigation, numerical control machine tool, processing center, robot and so on. in addition, it plays an important part in ac motor in modem times

    與傳統的電勵磁同步電機相比，永磁同步電機具有許多優良的特性，尤其是在要求高控制精度和高可靠性的場合，如航空、數控機床、加工中心、機器人等方面獲得了廣泛的應用，在現代交流電機中也佔有舉足輕重的地位。
  18. Control has ac control all function and beauty outside, add put a encoder, switch by means of itinerary come calculation bestowal

    本控制器擁有ac門控器所有功能及優點外，加裝一個encoder ，把開關門以行程來計算處理
  19. Bk s code ac no : 594 - 04804608093 swift code : bkchcnbj200

    聯系單位：中國汽車技術研究中心情報所信息網路室
  20. Brownouts are sometimes caused by overloaded circuits and are sometimes caused intentionally by the ac utility company in order to reduce the power drawn by users during peak demand periods ( like during hot summers when everyone is using their air conditioners )

    有時電路過載會引起電燈暗淡，有時供電公司有意這樣做，是為了在用電高峰期內降低用戶的用電量（比如在盛夏，每家人家都在使用空調） 。
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