磁針 的英文怎麼說

中文拼音 [zhēn]
磁針 英文
magnet needle; magnetic needle
  • : 名詞1. [物理學] (磁性; 能吸引鐵、鎳等的性質) magnetism 2. (瓷) porcelain; china
  • : Ⅰ名詞1 (縫衣物用的工具) needle 2 (細長像針的東西) needle like things 3 (針劑) injection; sh...
  1. Depend on the comprehensive analysis and study of the structure, principle, and exterior characteristic of the motor, through the methods of system modeling and digital simulation analysis, two kind of control device that work for the low voltage ( lvdc ) and the high voltage ( hvdc ) in avigation are researched respectively. point to the control technique of close - loop speed stabilization at a limited adjustment speed range, we bring out the close - loop speed control method that using the rotor position sensor indirectly measure the speed of the motor

    在全面分析了稀土永無刷直流電動機的結構特點、工作原理、運行方式以及外部特性的基礎上,通過系統建模和數字模擬分析,分別對航空低壓直流( lvdc )和高壓直流( hvdc )兩種電動機構用永無刷電動機,在小范圍轉速連續調節下的閉環穩速控制技術進行了詳細理論研究,提出了利用轉子位置傳感器信號間接測量電機轉速進行電機轉速閉環穩速控制的策略。
  2. Birds and compasses know north from south because, like a giant bar magnet, the earth ' s magnetic field has two poles that line up closely with the planet ' s axis of rotation

    候鳥與指北都知道何為北方、何為南方,因為地球就像一條巨型鐵棒,它的場有兩極,且這兩個地場線和地球的自轉軸非常接近。
  3. This effect occurs because the magnetism in the material is generated by innumerable magnetic atoms, like a host of tiny bar magnets, all roughly aligned but randomly fluctuating like compass needles being jiggled about

    這是因為材料的性是由無數個性原子所產生的,就像一群微小的塊狀鐵,它們雖大致排齊但仍不規則,就像羅盤的指一樣不停晃動。
  4. Aiming at permanent brushless dc motor in mini - bev ( battery electric vehicle ) with torque ripple and violent noise during low speed running, the fuzzy control method is combined with slide mode control method to suppress the influence due to un - modeling parameters, and to ensure the robustness in the process of reaching slide mode plane

    摘要對微型電動車用永無別電動機轉矩脈動大、低速運行時噪聲明顯等主要問題,採用模糊控制和滑模控制相結合的方法,克服了未建模參數的影響,保證了滑模到達階段的魯棒性,同時抑制了轉矩脈動。
  5. The thesis is devoted to exploiting a permanent magnet synchronous machine ( pmsm ) for the parallel hybrid electric vehicle ( phev ). three parts are included as follows : at first, in the electromotor state, the current control strategies of pmsm are determined. giving the elementary method for solving the contradiction between enhancing the pmsm ' s flux - weakening capability in the electromotor state and reducing the pmsm ' s connatural adjustment ratio in the dynamotor state

    本課題的研究工作主要圍繞開發一臺並聯式混合動力電動汽車( phev )用永同步電機( pmsm )展開,所作的工作主要包括以下幾個部分:首先,確立了phev用pmsm電動機運行狀態時的電流控制策略,對pmsm在電動機運行狀態時提高弱擴速能力和在發電機運行狀態時減小固有電壓調整率的相互矛盾,提出了初步的解決方法。
  6. C1o2 / tio2 granular composite the composite consists of acicular, conducting, ferromagnetic cro2 particles and spherical, insulating, diamagnetic tio2 particles

    顆粒復合物這是狀、導電的性croz顆粒和粒徑比ca12大得多的、球形且絕緣的非tio 。
  7. Hoisting technology by using permanent magnetism pad is one of the new applying fields. by far, although its application degree is far from popularization, it has a wide market outlook. aiming at the material ' s selecting problem and the disburdening problem, the article has done detailed depiction

    起重技術,是永材料應用的新領域之一,在目前,還遠遠沒有達到廣泛使用的程度,但是具有十分廣闊的市場前景,本文對永起重技術中的材料選用問題及卸重問題進行了詳細的論述。
  8. In accordance with some wolfram - tin effuse come from cleaner in aconcentrating mill, this study adopt vibrate dslimes shaking table combining with centrifugal separator to put up a roughers. tousegravity - flotation and magnetic con - centration as combined proces s of technology, succeed in solving a problem of multipurpose returning in wolfram - tinslimes

    對某選廠廢棄的鎢錫精選溢流進行了選礦試驗研究,採用振動礦泥搖床與離心機組合粗選,運用重選浮選選(水冶)聯合工藝流程,有效地解決了鎢錫細泥綜合回收問題。
  9. Influenced by the alternating current field, all of the eutectic microstructure of al - 20si - 5fe - ti alloy changed into very small particles which is well - distributed on the base of a - al. electromagnetic stirring stimulates the forming of equiaxed crystal in al - 20si - 5fe - mn alloy. primary iron - phase is transformed from thick needle into smooth block

    攪拌促進al - 20si - 5fe - xmn合金中等軸晶的生成,初生富鐵相由原來粗厚的片狀物轉化成比較圓整的塊狀,共晶組織中鐵相主要以較短的片狀存在。
  10. At pegmatite contacts the composition changes to chalcopyrite, millerite, pyrite, and violarite accompanied by magnetite and hematite.

    在偉晶巖接觸帶,硫化物成分變為黃銅礦、鎳礦、黃鐵礦及硫鎳鐵礦,伴生有鐵礦和赤鐵礦。
  11. In this thesis, founding on the study of the feature of the communication system in maglev train, the design principia of the communication system in maglev train is brought forward. after understanding the feature of the communication system and the induction signal in maglev train, the advantage and disadvantage of several binary modulating and demodulating methods is studied. then, two communication system based on parallel cable and crossed induction coils is put forward

    本文分析了浮列車通信系統的特點,提出了設計浮列車通信系統需要遵循的原則,浮列車通信系統和感應信號的特點,對比了多種二進制調制解調方式的特點和優點,提出了基於平行電纜和交叉回線的兩種無線感應通信系統。
  12. Magnetic sensors are an important branch that can be used to detect the non - electronically characteristics through the magnetic field. the insb magnetoresistance photoelectric sensor in this paper is designed for the fine measurement of the photosignal of the luminant device. through the sensor, the photo - pulse signal is changed to electric pulse which can provides to other second instruments

    通過場的無接觸特性,對非電量的測量是傳感器應用的一個重要方面,本文所研究的銻化銦阻型光電傳感器即是對于發光物體的光脈沖信號進行高精度無接觸測量的一類傳感器,它可以把光脈沖信號轉換成電脈沖信號,供二次儀表使用。
  13. Magnetic needle tells you what s going on in the sun, the stars

    磁針告訴你,太陽和星體正發生著什麼事。
  14. Exerimental study of magnetic needle to prevent and treat prostate hyperplasia

    對前列腺增生防治作用的實驗研究
  15. A compass is essentially a magnetized needle mounted in such a way that it can swing freely.

    實質上,指南就是一個支起來能自由擺動的磁針
  16. The needle of understanding will yet point steadfast and unwavering to the distinct pole of truth

    理智的磁針將永遠指向遠處真理的極。
  17. The needle of the compass shows that we ' re facing south

    指南上的磁針顯示我們處在朝南的位置。
  18. Yachting. installation of magnetic compasses. gauging methods. adjustement

    遊艇.磁針羅盤的安裝.校準方法.調正
  19. Vibration magnet meter

    擺動磁針
  20. For example, if some magnetic iron was underneath and if you first slept on the left side then five minutes later, you d become just like a needle attracted by magnetic iron and sleep on the other side. laughter then later on, you d sleep like this master assumes an upside - down position, and that s not good

    比方說,地底下有鐵之類的礦物,假如原來你朝左邊睡,五分鐘后就變成朝另一邊睡,你的身體就好像磁針一樣大眾笑,過一會兒又變這樣師父模仿一個人睡成頭下腳上的樣子,那就不是好風水了。
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