短极颈四极磁铁励磁线圈本身的磁场直接影响四极磁铁极端面附近的磁场分布。
The simulations also show that the magnetic field from the excitation windings directly influences the field distribution at the end of the quadrupole magnet if the pole neck is too short.
视磁极面为理想磁壁，应用镜象法，定量分析了外磁铁极头对谐振子阻抗的影响。
Considering that the surface of the magnetic pole is an ideal magnetic wall, by means of mirror method, the effect of outer magnetic pole on resonator impedance is analyzed quantitatively. The...
这种统一是指你不能拥有一个而不拥有另一个，它就像一块磁铁的南北两极。你不能拥有一个单极磁铁。
If you cannot have one without the other, it is like the north and south poles of a magnet.
你可能会感到奇怪，为什么磁铁的两极会指向南北呢？（加了数词）
You may wonder why the magnet's poles point north and south?
通过计算机模拟计算与实验相结合，讨论了真空盒磁导率对二极磁铁磁场分布的影响。
With the calculation and measuring experiment methods, the effect of vacuum chamber materials magnetic permeability on field distribution in a dipole magnet is discussed.
你会感到好奇，为什么磁铁的两极会指南北呢？
You may wonder why the magnet 's poles point north and south.
在直流发电机中，机械能用来转动电磁铁两极之间的电枢。
In the dynamo, mechanical energy is. used for rotating the armature between the poles of an electromagnet.
利用永磁铁间同极相斥的特性，构造了用于汽车减振系统的一种非接触、非线性的磁力弹簧。
Using the character of permanent magnetic iron, the magnetic spring was constructed with the character of non-connection and non-linear.
这根铁条被放在电磁铁的两个极上，然后，将电磁铁的线圈接通电源。
The iron bar was placed across the poles of the electromagnet. Then the coil of the electromagnet was connected to a battery.
还提出一种用激光诱导荧光(LIF)测量六极磁铁选择性的方法，实验结果与理论值符合得很好。
The selectivity was measured by laser-induced fluorescence (LIF) and the results were in good agreement with the theoretical ones.
这个部分包括马达的所有类型，从必要的基本的电路控制一个易变的勉强马达，对必要的H桥梁电路控制一个双极永久磁铁马达。
This section covers all types of motors, from the elementary circuitry needed to control a variable reluctance motor, to the H-bridge circuitry needed to control a bipolar permanent magnet motor.
河北某极贫铁矿石铁品位仅15.69%，铁的赋存形式主要为磁铁矿(50.16%)。
The extremely low grade iron ore in Hebei contains 15.69% of TFe only, and iron ores mainly exist in magnetite (50.16%).
这种原子核像缩微的陀螺围绕一根轴线自旋，产生磁性，像具有S极和N极的磁铁棒一样。
Such nuclei spin on an axis like miniature tops, giving rise to a magnetic moment, which means the nuclei act as if they were bar magnets with a north and south pole.
在直流发电机中，机械能被用来转动电磁铁两极之间的电枢。 （动名词rotating是介词for的宾语。）
In the dynamo, mechanical energy is used for rolating the armature between the poles of an electromagnet.
在直流发电机中，机械能被用来转动电磁铁两极之间的电枢。 （动名词rotating是介词for的宾语。）
In the dynamo, mechanical energy is used for rolating the armature between the poles of an electromagnet.
应用推荐