magnesia-insulated metal sheathed wire的意思|示意

氧化镁绝缘金属护套电线 ... 防潮护套 moisture barrier sheath 氧化镁绝缘金属护套电线 magnesia-insulated metal sheathed wire 聚乙烯-铅综合护套层、铅-聚乙烯综合护套 lepeth ...

氧化镁绝缘金属铠装电缆 magnesia-insulated metal sheathed wire ==> 氧化镁绝缘金属铠装电缆 magnesian limestone ==> 镁质灰岩,镁质灰岩层 ..