resistance per unit length[电磁] 单位长度电阻
resistance per unit area单位面积电阻
negative resistance logic unit负阻逻辑单元
resistance heating unit电阻加热器
specific resistance of unit volume容积比电阻
Ohmic resistance per unit length单位长度的欧姆电阻
friction resistance of unit length单位长度摩擦阻力
insulation resistance per unit length单位长度绝缘电阻
frictional resistance of unit length单位长度摩擦阻力