在生物安全实验室和洁净室，顶灯应该有密封装置直接固定在天花板上或嵌入在天花板内。

In biosafety laboratories and clean rooms, the over head lighting should be consisted of closed units fixed direct to or recessed in ceiling.

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在生物安全实验室和洁净室，顶灯应该有密封装置直接固定在天花板上或嵌入在天花板内。

In biosafety laboratories and clean rooms, the over head lighting should be consisted of closed units fixed direct to or recessed in ceiling.

youdao