The ceramic vessel is the principal part, whose external surface is equipped with metallic protectiveshell.
所述陶瓷容器为主体，在 陶瓷容器的外层设有金属防护外壳。
2
So after a year of being in a deal, trying to break through the protectiveshell of the founders and repeatedly being denied, the truth came out.
这一年里，我们曾竭尽全力突破创始人的保护层，但屡遭拒绝。现在，真相终于大白。
3
Our roads are particularly unsafe for pedestrians, cyclists and motorcyclists who, without the protectiveshell of a car around them, are more vulnerable.