porcelain housing
英
美
- 瓷外罩
双语例句
- 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。
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