trolly wire meaning in English
架空线
Examples
- Prf1 , modular fixed surge arresters , used for trolly wire protection
架空进线保护： prf1系列用于通信系统保护的 - Standard specification for figure - 9 deep - grooved and figure - 8 copper trolly wire for industrial haulage
工业运输用9号深槽铜及8号铜制电车架空线的标准规范 - We developed the power system of electric drill based on dc - ac . the system use the technique of spwm frequency cowersation control . it changed th d . c provided by trolly wire of d . c motor into stable a . c adopted igbt and driving circuit adopted high speed module of exb840
针对当前我国煤矿电钻电源的使用现状，提出研制dc - ac变换的电钻电源系统，该电源系统直接利用spwm变频控制技术，将井下直流电机车的架空线所提供的直流电转变成频率是50hz的1 . 27v的稳定交流电。