backbone cabling meaning in English
主干线布线，主干布线
Examples
- Multi - element metallic cables used in analogue and digital communication and control - horizontal and building backbone cables - horizontal and building backbone cables
模拟和数字通信及控制中使用的多元件金属电缆.水平和建筑物的主电缆 - Multi - element metallic cables used in analogue and digital communication and control - sectional specification for screened cables characterized up to 250 mhz - horizontal and building backbone cables
模拟和数字通信及控制中使用的多元件金属电缆.不足250mhz的铠装电缆分规范.水平和建筑物主干电缆 - Multi - element metallic cables used in analogue and digital communication and control - sectional specification for screened cables characterized up to 600 mhz - horizontal and building backbone cables
模拟和数字通信及控制中使用的多元件金属电缆. 600mhz及以下的铠装电缆分规范.水平和建筑物的主电缆 - Multi - element metallic cables used in analogue and digital communication and control - sectional specification for unscreened cables characterised up to 250 mhz - horizontal and building backbone cables
模拟和数字通信及控制中使用的多元件金属电缆. 250mhz及以下的非铠装电缆分规范.水平和建筑物主电缆 - Multi - element metallic cables used in analogue and digital communication and control - sectional specification for unscreened cables characterized up to 100 mhz - horizontal and building backbone cables
模拟和数字通信及控制中使用的多元件金属电缆. 100mhz及以下的非铠装电缆分规范.水平和建筑物的主电缆