regular transmission

The impact of high-voltage transmission lines damage arising from the long mechanical tension in the field, electrical flashover and materials aging, which has a serious thread of the operation of power system; it must be regular inspection of transmission lines.

高压输电线路由于在野外长期受到机械张力，电气闪络，材料老化的影响而产生损伤，对电力系统的运行造成严重威胁，因此必须对输电线路定期巡检。

Many HIV prevention approaches are used to decrease the risk of HIV transmission and infection, including abstinence, monogamy and regular use of condoms.

为降低HIV性传播或性传播疾病采取了很多预防措施，包括禁欲、一夫一妻制、常规使用安全套以及男性包皮环切术。

The method of calculating the characteristic impedance of the coaxial transmission line with regular polygonal outer and circular inner conductor is presented.

本文提出一种计算正多边形外导体-圆形内导体同轴传输线特性阻抗的方法。

Analysis on a Coaxial Transmission Line Family Consisting of Circular and Regular Polygonal Inner Conductor by the Multipole Theory

用多极理论分析圆柱-正N边形内导体同轴传输线