明线线路: open wire circuitopen withopen-wire circuitopen-wire line
Example Sentences:
1.
Standard for quality inspection and evaluation of petroleum construction engineering . telecommunication engineering toll open - wire carrier equipment installing engineering 石油建设工程质量检验评定标准.通信工程长途通信明线载波电话安装工程
2.
Standard for quality inspection and evaluation of petroleum construction engineering telecommunication engineering toll open - wire carrier equipment installing engineering 石油建设工程质量检验评定标准通信工程长途通信明线载波电话安装工程