Resistivity of the composite is much greater than that of pure SP under cryogenictemperature (77k), which is called Coulomb Blockade Effect.
复合材料低温下(77k)的体积电阻率明显高于纯sp，可以看作是库仑阻塞作用的结果。
2
In the cryogenictemperature field, the change of steel structure is random and ultramicroscopic, and it is also a kind of progressive changing process.
在超低温温度场中，钢组织结构的转变是随机、超显微的，而且是一种逐渐的转变过程。
3
This paper summarized the characteristics of physic mechanical properties of aerospace structural materials and the testing technique at cryogenictemperature conditions.