A superconductor's transition temperature and critical current density are two commonly measured parameters.

超导体的转变温度和临界电流密度是两个经常要测量的参数。

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As power is the critical equipment of micro oxidation technology, its parameters, such as voltage, current density, pulse frequency, have a very important impact on the quality of the film.

作为实现微弧氧化技术关键的电源设备，其电参数，如电压、电流密度、脉冲频率、脉冲占空比等参数对膜层的质量有着极其重要的影响。

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The critical current density depends exponentially on magnetic field, which indicates that there is a logarithmic potential well U in Bi2212 crystals.

同时发现电流密度与磁场间存在指数关系，表明样品中的钉扎势垒与电流密度之间存在对数关系。

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