He graduated from a national university.
他毕业于一所国立大学。
He graduated from a national university.
他毕业于一所国立大学。
In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece operated in the pressure demand or other positive pressure mode.
如果发生火灾,请在要求的压力下,穿保护衣和国立职业健康研究所批
的呼吸器械和
。
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