space currents 中文意思是什麼
space currents
解釋
空間電流-
Effects of the space charge forces and the beam halo in an avf cyclotron with intense beam currents
型?旋加速器中的空間電荷效應和束暈 -
Pulsing currents of brightly coloured light stream in disorienting patterns around the space
在整個空間周圍，明亮而色彩鮮明的光線用令人眼花繚亂的圖案構成了搏動的電流。 -
A radio antenna converts electric currents and voltages created by a transmitter into electromagnetic waves that radiate into space
無線電天線會把發射器產生的電流與電壓轉變成電磁波，然後以輻射方式在空中傳播。 -
In this paper point to point control, constant frequency control and up and down frequency control are studied, in which current lagging loop control method is used to restrict over currents. and using flux tracking method, position open loop, position close loop control system are also studied. and research results indicate that larger current ripples are restricted by means of subdividing space vectors
本文以永磁同步電動機為研究對象，分別對同步電動機的點動控制、恆頻控制以及升降頻控制進行了分析與研究，研究中採用了電流滯環控制方法，可有效地限制過電流現象；此外採用磁鏈跟蹤法對位置開環和位置閉環的步進控制系統分別進行了探討與研究，研究表明，採用矢量細分后，可有效地減小電流波動。 -
Besides these, it is capable of performing frequency conversion with sinusoidal output voltages and currents at the desired output frequency and allows bi - directional power flow according to the space vector modulation method of the equivalent structure of the ac - dc - ac conversion, the conversion relations of the matrix converter were deeply investigated. the ac - ac direct transformation control and the double - space - vector pwm scheme of the matrix converter were deduced and the modeling, sin ~ iu1ation and experiment of a three - phase matrix converter were implemented
本文從等效交一直一交變換的空間矢量調制方法出發，深入分析了矩陣式變換器的變換關系，推導出了交一交直接變換控制規律和雙空間矢量pwm調制技術，實現了交一交直接變換控制方式下矩陣式變換器的建模和運行分析，並進行了計算機模擬和實驗研究。 -
It possess many of the physical properties such as high atomic number ( z ), large enough band gap, high resistivity, relatively low leakage currents, and high intrinsic mobility - lifetime ( ut ) product, which are required for room - temperature nuclear radiation detectors. so it is widely used in nuclear medical imaging system, space engineering, and astrophysics, environmental monitoring, and so on. in addition, it is the best substrate for lattice matched epitaxial growth of hg1 - xcdxte ( mct ) thin films and solar cells
用單晶czt製成的探測器可在室溫下工作，工作溫度范圍寬（ - 20 40 ） ，能量探測范圍寬（ 10kev 6mev ） ，對x射線、射線能量解析度高，在x射線、射線成像、天體物理研究、工業探測、安全檢測、核輻射探測、核廢料監控、 x射線熒光分析（ xrf ） 、 x射線斷層掃描和核醫學等方面有重要用途。 -
Since previous studies have focused on theoretical research, space magnetic environment will be affected by many known or unknown factor, such as the electronic devices on satellite would product magnetism by currents through, and this would coupling the earth magnetism
由於以往的研究多集中在理論研究上，空間磁環境還會受到很多已知或未知因素的干擾，如星上電子器件由於電流通過而產生的磁場對地磁場的耦合等。 -
Based on state - space method to study the inverter fed permanent magnet synchronous machine, the sorts of the switch fault are given and the causes for the faults are analyzed. it investigates the currents and torque of the drive system fed by six - step inverter and pwm inverter under the different fault condition, and the valuable results are got 2
在利用狀態空間法深入分析永磁同步電動機變頻調速系統穩態特性的基礎上，分析了逆變器開關元件發生故障的類型及其原因，模擬分析了六階梯波逆變器、 pwm逆變器各種故障狀態下的系統動態特性，得出了一些有價值的結論。 -
Over the years, space physicists have come up with various ideas of greater complexity : perhaps, they reasoned, flares result from many different currents coming together or from a volume of turbulent plasma waves and the random electric fields associated with them
許多年來，太空物理學家提出了很多更復雜的想法：他們推論日焰也許源自許多不同電流的集合，或者來自於大量紊亂的電漿波與伴隨其間隨機無規的電場。
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