变电极极谱仪
two-electrode polarograph
不极化电极
non-polarizable electrode
nonpolarizing electrode
non-polarizing electrode
unpolarizable electrode
磁极不对称角度
magnetic pole asymmetric angles
单极（PN极）特性测试结构
Test constucture of single-polar characterise
动电位阳极极化
Potentiodynamic anodic polarization