您要查找的是不是:
- periodic magnetic filed 空间周期磁场
- It stores electric energy in the magnetic filed generated by DC current flowing through a coiled wire. 直流电流流过一绕结线圈,将电能储存于磁场中。
- Moreover, the stronger the pulsed magnetic filed, t he much more refiner and equiaxial effects appears. 实验结果表明,强脉冲磁场能把铝合金的凝固组织从粗大的树枝晶细化为等轴晶,而且磁场愈强,细化效果愈显著。
- Abstract: In this paper, a new high power and wideband amplifier with permanent periodic magnet(PPM) focusing is presented.It consists of klystron and FEM . 摘要: 提出了一种新的高功率宽带放大器,它由速调管和自由电子脉塞组成,用永久周期磁铁聚焦。
- The extracorporeal magnetic filed driving system was proposed for axial flow blood pump based on coupling principle of transverse alternating flux. 基于横向旋转磁场的耦合原理,提出轴流式血泵外磁场驱动系统方案,设计一种泵机分离的结构。
- The fiber is exposed to special magnetic filed,magneto optical effect would induce a part of the fiber gratings to become invalid,so as to the . 将光纤置于特定磁场中,磁光效应导致部分光栅失效,从而改变了光速的等效减缓量。
- The system measured earth magnetic filed strength.The results show the error is small and it can improved temperature property of fluxgate sensor and output stability. 应用该系统对地球磁场进行了测量,结果显示:它与实际数据之间的误差较小,改善了传统的磁通门信号处理的模拟电路的温度性能,提高了输出信号的稳定性。
- In accordance with the effective mass theory, the magnetic Kronig-Penny potential was used to solve the electronic band structure of GaAs/Al?xGa? 1-xAs superlattice in a periodic magnetic field. 在有效质量理论近似下;采用磁Kronig-Penny势场;精确求解了GaAs/AlxGa1-xAs超晶格中的电子在周期性磁场中形成的能带结构.
- The computed values of the periodic magnetic system containing the equivalent models by the 2D FEMM are in agreement with the measured results of the real system with open magnetic rings. 该2维等效模型能代替开口磁环进行计算。
- Moreover, the stronger the pulsed magnetic filed, t he much more refiner and equiaxial effects appears.This novel technique can be used in varies of metal materials and spread in industries. 强脉冲磁场细化金属凝固组织的新技术可应用于各种金属材料,并可在工业上推广应用。
- BASED on the analysis of magnetic filed, magnetic forces and AC loss, we compared the solenoidal windings and the pancake windings, and then give the ranges that each winding can be used. 在分析电磁场,电磁力和交流损耗的基础上,比较了高温超导变压器中螺旋状绕组和饼式绕组在电磁特性上的区别,给出了各自的应用范围。
- Periodic magnetic focusing system 周期永磁聚焦系统
- extracorporeal magnetic filed coupling 外磁场耦合
- That period was a bright page in the history of Chinese literature. 那个时期是中国文学史上光辉的一页。
- Let us hope that the period of this injustice will be over soon. 让我们希望这个不公正的时期很快结束吧。
- Childhood is a period of rapid growth. 幼年是生长迅速的时期。
- He consulted the chronicles of the period. 他参考了这一时期的编年史。
- When the rock emerges and cools, the magnetization of its minerals lines up like magnetic filings pointing, say, to the north. 当岩浆露出并且冷却,内部的矿物会像是由许多小磁铁排列整齐而成,而且一律指向北极。
- He had to decide within a given period. 他得在一定时间内作出决定。
- She has a detailed knowledge of this period. 她对这段时期的情况了解地相当详细。