磁铁

The traditional stability diagram for lattice design described in the space of the gradients of a focusing and a defocusing magnet is extended to study more complicated cases, in which the basic cell included in the super-periodic structure has more than two gradients as variables.

将环形加速器磁聚焦结构设计中，传统的聚焦和散焦磁铁强度空间中的稳定图方法，应用到更复杂的含有两个以上磁场梯度变量的超周期结构中，从而更深入地理解结构共振的形成机制和隐含的物理意义。

Step 1: Now we're going to show you how to make your magnets levitate.

步骤一：现在，我们要来示范如何制作悬浮的磁铁。

In today's experiment you will harness the power of magnetic repulsion to make a magnet levitate.

今天的实验中，你将利用磁性拒斥的作用来制作一个飘浮磁铁。

In this way, shaking hands round to make the magnet spins, as a result of a change in magnetic line of force, resulting in the coil wire on the current generated.

这样，摇动手轮使磁铁旋转时，由于磁力线发生了变化，结果在线圈导线中就产生了电流。

Long time ago, ancient Greeks and Chinese found a kind of naturally magnetized stone; they called this kind of stone the lodestone and that kind of stone was the ancestor of magnets.

很久以前，古希腊人和中国人发现自然界中有种天然磁化的石头，他们称其为"吸铁石"，这就是磁铁的鼻祖。

This is why aircraft carriers are called "bomb mag***s".

这就是航母被称为"炸弹磁铁"的原因。

This is why aircraft carriersare called "Bomb Mag***s".

这就是航母被称为"炸弹磁铁"的原因。

This is why aircraft carriersare called "Bomb Mag nets".

这就是航母被称为"炸弹磁铁"的原因。

Do you know how a magnet works?

你知道一块磁铁是如何工作的吗？

It has to do with you being a magnet

就好像你是一个磁铁

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。