instrument cable meaning in English

测试仪器电缆
仪器电缆

Insulated cables for power systems - energy - meter instrument cables
电力系统用绝缘电缆.电度表仪器电缆
Trying to measure what is happening with a scope or other instument is also problematical , because the instrument cables and input characteristics modify the network characteristics by their very presence when connected
试图用测量仪或其他工具测试此时的系统变化也不太行得通，因为一旦仪器接入系统，它的测试线和输入特性会改变系统电路的特征。