敷设在室内、电缆沟、管道、竖井等能承受较大机械拉力等固定场合。

For laying indoors, in trenches, in ducts and down well , able tobear heavier pulling force, andfor fixed installation.

youdao

敷设在室内、电缆沟、管道、竖井等能承受较大机械拉力等固定场合。

For laying indoors, in trenches, in ducts and down well , able tobear heavier pulling force, andfor fixed installation.

youdao