垫芯 meaning in English

bedding core

Finished cable : twisted by three shielded main wire core , allowed add core in centre and side
成缆：三根屏蔽后的主线芯绞合成缆，中心边缝允许加垫芯。
Forming cable : three main core and one grounding wire intertwist encircling core in right direction
成缆： 3个主线芯和一个地线围绕垫芯按右向绞合成缆。
There are two structure of up cable : four cores and five cores , formed by three main wire and one grounding wire one core is control wire in five cores cable , interwist to cable encircling core and outside wraped black rubber sheath
5芯电缆中有一芯为控制线。围绕垫芯绞合成缆，外面挤包黑色氯丁橡皮护套。
There are two structure of up cable : four cores and five cores , formed by three main wire and one grounding wire one core is control wire in five cores cable , interwist to cable encircling semiconducting core and outside wraped black chloroprene rubber sheath
5芯电缆中有一芯为控制线。围绕半导电垫芯绞合成缆，外面挤包黑色氯丁橡皮护套。
Ucq cable formed by three insulated shielded main wire and one grounding wire with semiconducting rubber layer , interwist to cable encircling semiconducting rubber core and outside wraped yellow chloroprene rubber sheath
型电缆由3个带有绝缘屏蔽的主线芯和一个包覆半导电橡皮层的地线组成，围绕半导电橡皮垫芯绞合成缆，外面挤包黄色氯丁橡皮护套。