您要查找的是不是：
- 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.
- It shows the presence of a magnetic field. 这表明有磁场存在。
- Thermal Transport Properties of Two Dimensional Electron Gas under a One Dimensional Periodic Magnetic Field 一维周期调制磁场中二维电子气的热学输运特性
- On the energy exchange between relativistic electrons in periodic magnetic field and light radiation 周期磁场中的相对论电子与光辐射的能量交换
- periodic magnetic field 周期性磁场
- Can Magnetic Field Drill through a Piece of Iron? 磁场能穿过铁片吗?
- The string is in a magnetic field. 振动弦处于磁场之中。
- The force exerted by a magnetic field. 力由磁场施加的力。
- The lines of force of a magnetic field. 磁力磁场的磁力线
- The reversal process is not literally periodic as it is on the sun,whose magnetic field reverses every 11 years. 倒转过程不是真正具有像在太阳上那样的周期性，太阳磁场每11年出现倒转。
- The class of phenomena exhibited by a magnetic field. 磁性磁场显示的一组现象
- The current in the conductor sets up a magnetic field. 导体里的电流形成一个磁场。
- A third radiation group was unaffected by the magnetic field. 第三组射线不受磁场的影响。
- The magnetic field of the earth creates a torque around the pivot. 地球的磁场在支点周围产生一个转矩。
- 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。
- We might put the current-carrying wire in a magnetic field. 我们可将载流导线置于磁场中。
- The stronger the magnetic field,the more current is generated. 磁场越强，发出的电流就越多。
- Mariner Ten showed that Mercury has a weak magnetic field. 水手10号发现，水星有一个很弱的磁场。
- Don't bend or stain and avoid magnetic fields. 不要弯折、污损，并避开磁场。
