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- The electron gun for a large screen color picture tube generally employs quadrupole lens, so that the landing spot with positive astigmatism can cancel the negative astigmatism from the deflection magnetic field in certain sense. 大屏幕彩色显像管电子枪通常采用非轴对称四极透镜 ,其目的是形成一定正像散的着屏光点以抵消偏转磁场产生的负像散。
- It shows the presence of a magnetic field. 这表明有磁场存在。
- deflecting magnetic field 偏转磁场
- The magnetic field associated with these particles helps protect the Earth from cosmic rays by deflecting them from the planet. 地磁场同这些粒子相结合令宇宙射线发生弯曲，从而帮助地球避开来访的宇宙射线。
- A single dry-cell battery provides current to deflect the needle and to demonstrate mapping of the current's magnetic field. 由一乾电池提供电流使针转向提供电流使磁针改变方向并观察电流磁效应所造成的磁场。
- 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。
- Injection energy is 100MeV, "Multiturn" technique will be applied in injectionscheme with the help of 3 kickers and a deflecting magnet. (3) 动量色散函数在直线节上等于零,以便减少磁插入元件对设计特性的影响。
- The lines of force of a magnetic field. 磁力磁场的磁力线
- Influence of the HZ Component of the Deflection Magnetic Field on Deflection Aberration 偏转磁场中HZ分量对偏转像差的影响
- 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。
- 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。
