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2013-05-23 12:21
求翻译：• Avoid nitrogen build up. Anywhere liquid nitrogen is used must be well ventilated to reduce the risk of nitrogen build up. Small volumes of liquid nitrogen convert to very large volumes of gas. This can result in drowsiness, or in extreme cases, asphyxiation.是什么意思？ 待解决
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- 离问题结束还有
• Avoid nitrogen build up. Anywhere liquid nitrogen is used must be well ventilated to reduce the risk of nitrogen build up. Small volumes of liquid nitrogen convert to very large volumes of gas. This can result in drowsiness, or in extreme cases, asphyxiation.
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