交换子

At low temperature, both the positive and negative magnetoresistance effect can be observed for all the samples. The s-d exchange interaction induced spin-splitting, the formation of bound magnetic polarons, and the magnetic field suppressed spin-disorder scattering were competed for the MR behavior.

另外，在低温时所有样品都表现出较大的正磁电阻，我们认为正磁电阻效应是由于s-d电子交换相互作用引起的自旋劈裂造成的，而高场时出现的负磁电阻效应则可能归因于磁场导致的束缚磁极化子的破损和自旋散射的抑制。

It is widely accepted that the essential mechanism inthe manganese oxides is the double exchange and electric-phonon interaction,whichare intimately related to the lattice distortions of MnO6 octahedra.

目前国际公认此材料中最根本的物理机制是双交换和电-声子相互作用，它们和此材料中载流子的自旋和MnO6八面体的晶格畸变密切相关。

The scarce resources in a telephone switch are the connections between layers of subswitches.

子交换机之间的层闲连接是交换系统中的短缺资源。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。