protective covering

英 美
  • n.防护罩;防护涂层;防护层;护面
Noun:
  1. a covering that is intend to protect from damage or injury;

    "they had no protection from the fallout"
    "wax provided protection for the floors"

  2. the tough natural covering of some organisms

    用作名词 (n.)
    1. These electric wires are protected by a rubber covering.
      这些电线用橡胶作防护层。