porcelain housing

• 瓷外罩

porcelain housing的用法和样例：

例句

1. The symbol shall be closely associated with the device housing the source, as a warning not to dismantle the device or get any closer to the source.
   本辅助警示标志应与装置中射源的外罩紧密组合，以做为不得任意拆除装置或不得更接近射源的一种警告措施。