As the field wanes, the number of sunspots falls to a trough or minimum, at which point the sun's magnetic field reverses direction and starts to regain its strength.
随着磁场减弱，太阳黑子的数量会减少到最小值或者说最低点(波谷)，然后太阳的磁场就会反方向运动，开始重新变强。
We have placed the nanotubes between magnetic electrodes and we have shown that the direction of a single electron spin caught on the nanotube can be controlled directly by an electric potential.
我们把碳纳米管放在磁性电极之间。然后我们发现被碳纳米管捕捉的单电子自旋方向可以被电势直接控制。
Moreover, turtles responded to the magnetic fields by orienting themselves in a direction that would have led them towards the capture site had they been where each magnetic field naturally occurs.
此外，如果海龟处在磁场自然分布的任何一个地方，他们就会对磁场做出这样的反应，即，引导自己朝向捕食地点。
This change in transmission allowed the researchers to find the size and direction of the magnetic field at the same time.
这一传递中的变化使得研究人员可以同时找到磁场的大小和方向。
Electrons flowing through the chip would "see" a magnetic field that flips from one direction to the opposite every few hundred nanometres (billionths of a metre).
穿过芯片的电子可以“识别”某一磁场，该磁场每隔几百纳米(十亿分之一米)就变换一次方向。
With the magnetic field turned on, the iron layers both magnetize, say, in the spin-up direction, so all of the spin-down electrons move through the entire sample without scattering.
加上磁场后，两个铁层都被磁化，假如是上方向，那么所有下自旋的电子移动通过整个样本都没有散射。
The study found that monarch butterflies have an internal sense of direction that allowed them to get from one point to another even in the absence of light by sensing the Earth's magnetic field.
有研究发现帝王蝶有方向感，可以让他们在没有光的情况下，通过磁场感应的方式，它们能精确的从某处飞到另一个地方。
The interplanetary magnetic field fluctuates greatly in magnitude and direction.
行星际磁场在不同的星等和方向强度差别很大。
Massachusetts General HospitalStandard MRI machines create a magnetic field that orients the hydrogen within body tissues’ water molecules in one direction.
麻省总医院标准的MRI机器能纸草一个磁场，让人体细胞内所有水分子中的氢朝向一个方向。
Stefan Maus: They're equipped with very sensitive magnetometers that measure the direction and strength of the magnetic field and that altitude.
斯特芬•茅斯：科学家们采用非常灵敏的磁力计来测量地磁场的方向、强度及方位。
Convection in the magnetosphere and ionosphere can be strongly driven by these fluctuations, independent of the direction of the interplanetary magnetic field.
磁气圈和电离层之间的能量传递可以靠磁场的变化产生的强大的推动力，而不一定要依赖于行星际磁场方向。
The sample was then exposed to a magnetic field applied parallel to the direction of flow of blood via a coil around the edge of the test tube.
然后，将样品放置在通过缠绕在试管边缘的线圈而产生的磁场中，该磁场的方向与血液流动方向相同。
Zibrov and his colleagues wanted to create a compass that could directly pinpoint the direction and the size of a magnetic field.
Zibrov和他的同事想要制造一种可以直接精确定位出磁场方向和大小的罗盘。
The magnetic termite Amitermes meridionalis of Australia uses Earth's magnetic field to build mounds elongated in anorth-south direction.
生活在澳大利亚的磁石白蚁（Amitermesmeridionalis）利用地球磁场建造南北走向的白蚁丘。
We recognized that the geomorphology, gravity and magnetic anomalies trend ne direction as bandings.
这里的地形地貌、重力异常和磁异常沿东方向呈条带状分布。
A built-in direction sensor detects magnetic north.
内置的方向传感器检测磁北。
The current estimated normalized magnetic field direction, corrected for the fields generated by the torque coils.
目前经由修正转矩线圈产生的磁场而估计到的正规化磁场方向。
Stefan Maus: Another example is that cameras will have magnetic field sensors, because you will want to know later not only where you took that picture, but also which direction you took the picture.
斯特芬•茅斯：另一个很好的例子就是未来的照相机可能会安装磁场传感器，这样人们不仅能了解相片的拍摄场地，还能得知拍摄的方向。
Unlike the gravitational acceleration, the magnetic acceleration is a location-dependent variable and its magnitude and direction vary with the magnetic circuit configuration.
与重力加速度相比，磁加速度是一个依赖于空间位置的变量，其大小和方向随外磁场的磁路布置发生改变。
The magnitude and direction of this magnetic flux can be controlled in agreement with the magnitude and direction of the field current.
改变励磁电流的大小和方向可以控制直流磁通的大小和方向。
The data measured by magnetic sensor can be used in calculating the flight attitude of the projectile and giving the direction benchmark of firing pulse jet.
地磁传感器测量的数据不仅用于解算弹体飞行姿态，同时可通过计算给出点火脉冲发动机选择的方向基准。
Also, MMF of the field winding is represented as electric currents in the gap between poles, with regard to magnitude and direction of magnetic field at respective poles.
另外，用两极之间的电流表示励磁绕组磁动势，对应于各极之间磁场的大小和方向。
The relationship between the different direction magnetic properties (B8), texture and the magneto-crystalline anisotropy energy (EK) of a doubly oriented Si steel has been investigated.
研究了一种双取向硅钢不同方向的磁感(B8)及其与织构和磁晶各向异性能(EK)之间的关系。
View the magnetic field lines or use a meter to show the direction and magnitude of the current.
观察此长线或利用仪表来显示电流的方向和量级。
The results show that this microsensor is not only used to measure the magnitude of magnetic intensity, but also applied possibly to monitor the direction of vector of the magnetic field.
结果表明：微传感器件不仅可以测量出磁场的大小，而且给出了测量磁场矢量方向的可能性。
These small magnets can free rotation, peacetime its direction desultorily, magnetic mutual offset, the whole object does not show magnetism.
这些小磁铁可以自由转动，平时它们的方向杂乱无章，磁性相互抵消，整个物体不显磁性。
Ferromagnetic kind material after magnetization, the internal magnetic light-induced very neat, the direction to align, magnetic strengthening, constitutes the magnet.
铁磁类物质磁化后，内部的磁畴整整齐齐、方向一致地排列起来，使磁性加强，就构成磁铁了。
Once they meet with magnets, ferromagnetic materials inside the "small magnets" reordering, same direction, magnetic, and make mutual superposition ferromagnetic materials display macro magnetism.
一旦它们与磁铁相遇，铁磁性物质内部的“小磁铁”重新排序，方向相同，磁性互相叠加，于是使铁磁性物质显示宏观磁性。
Once they meet with magnets, ferromagnetic materials inside the "small magnets" reordering, same direction, magnetic, and make mutual superposition ferromagnetic materials display macro magnetism.
一旦它们与磁铁相遇，铁磁性物质内部的“小磁铁”重新排序，方向相同，磁性互相叠加，于是使铁磁性物质显示宏观磁性。
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