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1·Conclusion Intrinsic atrioventricular conduction ability is poor, representing unidirectional conduction in majority of cases.

结论绝大多数在体房室结固有逆传功能明显低于房室顺传，或呈单向传导。

2·The enhancement of MR effect at room temperature was mainly related to the coexistence of intrinsic MR properties and the spin dependent scattering of conduction electrons at the interfaces.

磁电阻的本征效应和传导电子在界面处的自旋相关散射作用是产生室温下增强磁电阻效应的主要原因。