protective casing

英 美
  • 保护外壳;保险罩
  • casing n.套;罩;匣;盒;[经](石油)套管;包装动词case的现在分词.
  • protective adj.保护的;防卫的
    1. Tongchuan city officials believe the radioactive material - and its protective container - are likely to have been melted down.
      铜川市官员认为,这快放射性材料,及其保护外壳,可能已经被熔化了。