无限长直电流的磁场具有柱对称性。
The magnetic field of an infinite long straight current has a cylindrical symmetry.
磁铁的磁场跟电流的磁场一样，都是由电荷的运动产生的。
The magnetic field of magnet is the same with the magnetic field of electric current, they all caused by the movement of electric charges.
已经证明，感应电压使电流的方向与产生电流的磁场力方向相反。钵。
It has been proved that induced voltage causes a current to flow in opposition to the force producing it.
这种手段在一小块头骨上形成一个磁场，既而在大脑中产生微弱的感应电流。
The technique generates a magnetic field on a small part of the skull which creates weak electric currents in the brain.
这些电子被引入一个球形金属收集器以产生电流，继而产生线圈的磁场——这样这个系统就可以自我维持了。
These electrons get funnelled into a metal spherical receiver to produce a current, which generates the wire's magnetic field - making the system self-sustaining.
磁场唯一的来源就是电荷和电流。
The only magnetism comes from electric charges and currents.
然后他们将电流导入金属丝，这样金属丝就有了磁性，就像地球的电磁场一样。
They then sent a current through it so that the coil was magnetised in a way which mimicked Earth's electromagnetic field.
此种器械产生磁场的功率足以在人的大脑细胞里激发出电流而不会使人体有所损害。
The machine's magnetic fields are powerful enough to induce electric currents in human brain cells without being harmful.
最合理的解释涉及到沿着磁场线的电流。
The most plausible explanation involves electrical currents along the magnetic field lines.
地球磁场由地球外核中的电流产生。
The Earth's magnetic field is generated by currents flowing in Earth's outer core.
NASA的伽利略号太空船在1996年和1997年低空飞越这颗木星的第二大卫星，他们发现木卫四的磁场在不断变化，这意味着存在电流。
NASA's Galileo spacecraft did a fly-by of Jupiter's second largest moon in 1996 and 1997 and found that Callisto's magnetic field varied, indicating currents.
无论是火星还是金星都没有同地球一样的磁场，地球的磁场是由地球熔融核心中的电流产生的。
Neither Mars nor Venus has a magnetic field like the Earth's, which is generated by currents in the planet's molten core.
电流产生了磁场，导致第三个变量的产生-磁通量，它表示磁场的强弱。
Currents create magnetic fields, leading to a third variable, magnetic flux, which characterises the field's strength.
其中一项指出电场和磁场是怎样由电荷和电流产生的，另一项指出磁场的缺失并不是由电流产生的。
One of them describes how electric and magnetic fields are generated by electric charges and their currents. The other describes the absence of magnetic fields that don't come from electric currents.
如果有一个电流通过线圈，并激发出磁场，相应的，根据另一个方程激发出电场，并产生电流。
If you have a current passing in the loop that causes a magnetic field and, in turn, for the other equation that causes an electric field, which in turn causes a current.
在一个线圈的电线旋转磁场产生电流。
A coil of wire rotating in a magnetic field produces a current.
进行该项治疗的患者在头部置有一个线圈，这个线圈通过电磁感应在一个变化的磁场中激活弱电流。
Patients undergoing this treatment have a coil placed on their head which uses electromagnetic induction to activate weak electric currents via a changing magnetic field.
利用麦克斯韦方程组和场的轴对称性，分别对含不稳定电荷源和不稳定电流源的轴对称非静态空间电磁场进行了研究。
By using the Maxwells equations and axial symmetry, the axial symmetric unstable electromagnetic field with unstable charge source and unstable current source is studied.
装置的特点是在条款电流电压曲线和约瑟夫森临界电流与外部应用磁场。
Devices have been characterized in terms of current-voltage curves and Josephson critical current vs.
这项技术包括战略性放置在头上电磁石的应用，它产生一个发射微小的电流进入大脑的电磁场。
The technique involves the use of electromagnets positioned strategically on the head to create a magnetic field that sends tiny electric currents into the brain.
在新的研究中，研究者通过在头皮上应用磁场形成电流来干扰tPJ区域的活跃性。
In the new study, the researchers disrupted activity in the right TPJ by inducing a current in the brain using a magnetic field applied to the scalp.
本文研究了在垂直于磁场和等离子体流动的重力场中具有剪切流动的电流片的稳定性。
The stability is studied of a current sheet with a sheared flow in a gravitational field which is perpendicular to the magnetic field and plasma flow.
当电流穿过功率发射器中的线圈时会产生电磁场，向接收器输送电量。
As electricity moves through the power transmitter coil, it creates an electromagnetic field that sends a charge to the next coil.
其屏蔽盒应用主气隙，防止原电流产生的磁场集中在屏蔽壳的金属板内。
Its shielded box should be used the main air gap and prevent the primary current to produce the magnetic field concentrating in the shield shell metal plate.
通有电流的导体在其周围会产生磁场。
When current flows through a conductor, a magnetic field is formed around the conductor.
电磁感应现象：闭合电路的一部分导体在磁场里做切隔磁感线运动时，导体中就产生电流的现象。
Electromagnetic induction: when a conductor of a closed electric circuit move cutting the magnetic induction lines, the conductor produces current.
电磁感应现象：闭合电路的一部分导体在磁场里做切隔磁感线运动时，导体中就产生电流的现象。
Electromagnetic induction: when a conductor of a closed electric circuit move cutting the magnetic induction lines, the conductor produces current.
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