2) three-core bundle insulation conductor
三芯绝缘导线束
3) three-wire insulated neutral system
中点绝缘三线制
6) three layers of insulation
三层绝缘
1.
Based on diverse working condition featured by dust,abrasiveness,high temperature and strong magnetic field,two or three layers of insulation is considered when designing.
根据电解车间内多粉尘、磨损性、高温度、强磁场的恶劣工作条件,有针对性地设计了两层至三层绝缘层。
补充资料：三重
1.三种隆重的礼仪。指祭祀仪式中献用祼﹑声用升歌﹑舞用《武宿夜》。 2.三种隆重的礼仪。指夏﹑商﹑周三王之礼。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条