main wire meaning in English

较大的

Dc resistance of main wire not bigger than km
电缆主线直流电阻不大于
Insulated resistance of main wire core
不大于主线芯绝缘电阻
Identification of wire core : the color of main wire core is red green white
线芯识别：主线芯采用绝缘分色识别，颜色标志为红绿白。
Finished cable : 3 main wire and 1 ground wire encircling semiconductive rubber in right direction
个地线围绕半导电橡皮填芯按右向成缆。
Evaluation of scheme economic evaluation for main wiring in pushihe pumped - storage power station
蒲石河抽水蓄能电站主接线设计方案经济性评定

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